Bump hex-literal from 0.3.3 to 0.3.4 (#4264)

Bumps [hex-literal](https://github.com/RustCrypto/utils) from 0.3.3 to 0.3.4.
- [Release notes](https://github.com/RustCrypto/utils/releases)
- [Commits](https://github.com/RustCrypto/utils/compare/hex-literal-v0.3.3...hex-literal-v0.3.4)

---
updated-dependencies:
- dependency-name: hex-literal
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

polkadot/Cargo.lock

@@ -2558,9 +2558,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hex-literal"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21e4590e13640f19f249fe3e4eca5113bc4289f2497710378190e7f4bd96f45b"
+checksum = "7ebdb29d2ea9ed0083cd8cece49bbd968021bd99b0849edb4a9a7ee0fdf6a4e0"
 
 [[package]]
 name = "hex_fmt"
@@ -11103,7 +11103,7 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f559b464de2e2bdabcac6a210d12e9b5a5973c251e102c44c585c71d51bd78e"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "rand 0.8.4",
  "static_assertions",
 ]