Bump assert_cmd from 1.0.8 to 2.0.2 (#4431)

Bumps [assert_cmd](https://github.com/assert-rs/assert_cmd) from 1.0.8 to 2.0.2.
- [Release notes](https://github.com/assert-rs/assert_cmd/releases)
- [Changelog](https://github.com/assert-rs/assert_cmd/blob/master/CHANGELOG.md)
- [Commits](https://github.com/assert-rs/assert_cmd/compare/v1.0.8...v2.0.2)

---
updated-dependencies:
- dependency-name: assert_cmd
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

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

polkadot/Cargo.lock

@@ -162,9 +162,9 @@ checksum = "e22d1f4b888c298a027c99dc9048015fac177587de20fc30232a057dfbe24a21"
 
 [[package]]
 name = "assert_cmd"
-version = "1.0.8"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c98233c6673d8601ab23e77eb38f999c51100d46c5703b17288c57fddf3a1ffe"
+checksum = "e996dc7940838b7ef1096b882e29ec30a3149a3a443cdc8dba19ed382eca1fe2"
 dependencies = [
  "bstr",
  "doc-comment",

polkadot/Cargo.toml

@@ -17,7 +17,7 @@ color-eyre = { version = "0.5.11", default-features = false }
 parity-util-mem = { version = "*", default-features = false, features = ["jemalloc-global"] }
 
 [dev-dependencies]
-assert_cmd = "1.0.2"
+assert_cmd = "2.0.2"
 nix = "0.20.0"
 tempfile = "3.2.0"