Update wasmi requirement from 0.29 to 0.31 (#70)

Updates the requirements on [wasmi](https://github.com/paritytech/wasmi)
to permit the latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/paritytech/wasmi/releases">wasmi's
releases</a>.</em></p>
<blockquote>
<h2>v0.31.0 - 2023-07-31</h2>
<h3>Added</h3>
<ul>
<li>Added <code>ResourceLimiter</code> API known from Wasmtime. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/737">paritytech/wasmi#737</a>)
<ul>
<li>This API allows to limit growable Wasm resources such as Wasm tables
and linear memories.</li>
<li>Special thanks to <a href="https://github.com/graydon">Graydon
Hoare</a> for contributing this feature!</li>
</ul>
</li>
</ul>
<h3>Fixes</h3>
<ul>
<li>Fixed a bug were <code>Module::len_globals</code> internal API
returned length of linear memories instead. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/741">paritytech/wasmi#741</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>Removed <code>intx</code> crate dependency. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/727">paritytech/wasmi#727</a>)
<ul>
<li>The dependence on the <code>intx</code> crate was accidental and not
really required at any time.</li>
</ul>
</li>
<li>Optimized <code>f64.const</code> instructions for <code>f64</code>
constant values that can losslessly be encoded as 32-bit
<code>f32</code> value. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/746">paritytech/wasmi#746</a>)</li>
</ul>
<h3>Dev. Note</h3>
<ul>
<li>We now publish and record graphs of benchmarks over time. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/740">paritytech/wasmi#740</a>)
<ul>
<li>This allows <code>wasmi</code> developers to better inspect
performance changes over longer periods of time.</li>
</ul>
</li>
<li>Updated dev. dependencies:
<ul>
<li><code>criterion 0.4.0</code> -&gt; <code>0.5.0</code></li>
<li><code>wast 0.52.0</code> -&gt; <code>0.62.0</code></li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/paritytech/wasmi/blob/master/CHANGELOG.md">wasmi's
changelog</a>.</em></p>
<blockquote>
<h2>[<code>0.31.0</code>] - 2023-07-31</h2>
<h3>Added</h3>
<ul>
<li>Added <code>ResourceLimiter</code> API known from Wasmtime. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/737">paritytech/wasmi#737</a>)
<ul>
<li>This API allows to limit growable Wasm resources such as Wasm tables
and linear memories.</li>
<li>Special thanks to <a href="https://github.com/graydon">Graydon
Hoare</a> for contributing this feature!</li>
</ul>
</li>
</ul>
<h3>Fixes</h3>
<ul>
<li>Fixed a bug were <code>Module::len_globals</code> internal API
returned length of linear memories instead. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/741">paritytech/wasmi#741</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>Removed <code>intx</code> crate dependency. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/727">paritytech/wasmi#727</a>)
<ul>
<li>The dependence on the <code>intx</code> crate was accidental and not
really required at any time.</li>
</ul>
</li>
<li>Optimized <code>f64.const</code> instructions for <code>f64</code>
constant values that can losslessly be encoded as 32-bit
<code>f32</code> value. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/746">paritytech/wasmi#746</a>)</li>
</ul>
<h3>Dev. Note</h3>
<ul>
<li>We now publish and record graphs of benchmarks over time. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/740">paritytech/wasmi#740</a>)
<ul>
<li>This allows <code>wasmi</code> developers to better inspect
performance changes over longer periods of time.</li>
</ul>
</li>
<li>Updated dev. dependencies:
<ul>
<li><code>criterion 0.4.0</code> -&gt; <code>0.5.0</code></li>
<li><code>wast 0.52.0</code> -&gt; <code>0.62.0</code></li>
</ul>
</li>
</ul>
<h2>[<code>0.30.0</code>] - 2023-05-28</h2>
<h3>Changed</h3>
<ul>
<li>Optimized <code>wasmi</code> bytecode memory consumption. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/718">paritytech/wasmi#718</a>)
<ul>
<li>This reduced the memory consumption of <code>wasmi</code> bytecode
by organizing the instructions
into so-called instruction words, effectively reducing the amount of
bytes required per
<code>wasmi</code> instruction 16 bytes to 8 bytes.
There was an experiment with 4 bytes but experiments confirmed that 8
bytes per instruction
word was the sweetspot for <code>wasmi</code> execution and translation
performance.</li>
<li>This did not affect execution performance too much but we saw
performance improvements
for translation from Wasm to <code>wasmi</code> bytecode by roughly
15-20%.</li>
</ul>
</li>
<li>Optimized <code>call</code> and <code>return_call</code> for Wasm
module internal calls. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/724">paritytech/wasmi#724</a>)
<ul>
<li><code>wasmi</code> bytecode now differentiates between calls to Wasm
module internal functions
and imported functions which allows the <code>wasmi</code> bytecode
executor to perform the common
internal calls more efficiently.</li>
<li>This led to an execution performance improvement across the board
but especially for
call intense workloads of up to 30% in some test cases.</li>
</ul>
</li>
</ul>
<h2>[<code>0.29.0</code>] - 2023-03-20</h2>
<h3>Added</h3>
<ul>
<li>Added support for <code>extended-const</code> Wasm proposal. (<a
href="https://redirect.github.com/paritytech/wasmi/pull/707">paritytech/wasmi#707</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/paritytech/wasmi/commit/983ef37b3e2acf38a898e191c9bbbd2bc2c05da7"><code>983ef37</code></a>
Prepare <code>wasmi</code> release for version <code>0.31.0</code> (<a
href="https://redirect.github.com/paritytech/wasmi/issues/748">#748</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/af8c588c9059c5299da812958d7a71dc024d2938"><code>af8c588</code></a>
Publishing benchmarks for graphs (<a
href="https://redirect.github.com/paritytech/wasmi/issues/740">#740</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/ee577f268db3bc8b95c685205517c37b4800fa68"><code>ee577f2</code></a>
Refactor <code>reftype</code> <code>Transposer</code> conversion utility
(<a
href="https://redirect.github.com/paritytech/wasmi/issues/747">#747</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/ed12feb9f286d13bbdce50491c4d50487319f316"><code>ed12feb</code></a>
Add <code>F64Const32</code> instruction (<a
href="https://redirect.github.com/paritytech/wasmi/issues/746">#746</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/fbe1810a209f8884883333963b6d03c7421c5e5f"><code>fbe1810</code></a>
Fix <code>clippy</code> warning (<a
href="https://redirect.github.com/paritytech/wasmi/issues/745">#745</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/e5fdb7fe32b9151dff6a39c8a4d516817cc72dc2"><code>e5fdb7f</code></a>
fixes <a
href="https://redirect.github.com/paritytech/wasmi/issues/735">#735</a>:
copy paste typo (<a
href="https://redirect.github.com/paritytech/wasmi/issues/741">#741</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/4860ecc877a6e13a8c4924be6d8f287f126752ad"><code>4860ecc</code></a>
Support for <code>ResourceLimiter</code> API (<a
href="https://redirect.github.com/paritytech/wasmi/issues/737">#737</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/799995da7afb0ae02bb4fd1c9f242fe07c7ad824"><code>799995d</code></a>
make <code>ConstRef</code> based on <code>u32</code> instead of
<code>intx::U24</code> (<a
href="https://redirect.github.com/paritytech/wasmi/issues/727">#727</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/4fb164ce6b9a06af65923596711f5988384d6e13"><code>4fb164c</code></a>
Prepare release of <code>wasmi</code> version <code>0.30.0</code> (<a
href="https://redirect.github.com/paritytech/wasmi/issues/726">#726</a>)</li>
<li><a
href="https://github.com/paritytech/wasmi/commit/a6165a6ff9ad07f525b3352b0ab4442da32e0f7f"><code>a6165a6</code></a>
smol clean-up (<a
href="https://redirect.github.com/paritytech/wasmi/issues/725">#725</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/paritytech/wasmi/compare/v0.29.0...v0.31.0">compare
view</a></li>
</ul>
</details>
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Cargo.toml

@@ -37,7 +37,7 @@ rand = "0.8"
 wat = "1"
 wasmparser = "0.109"
 wasmprinter = "0.2"
-wasmi = "0.29"
+wasmi = "0.31"
 
 [features]
 default = ["std"]