Bump bounded-vec from 0.5.0 to 0.6.0 (#5372)

Bumps [bounded-vec](https://github.com/ergoplatform/bounded-vec) from 0.5.0 to 0.6.0.
- [Release notes](https://github.com/ergoplatform/bounded-vec/releases)
- [Changelog](https://github.com/ergoplatform/bounded-vec/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/ergoplatform/bounded-vec/compare/v0.5.0...v0.6.0)

---
updated-dependencies:
- dependency-name: bounded-vec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

polkadot/Cargo.lock

@@ -712,9 +712,9 @@ dependencies = [
 
 [[package]]
 name = "bounded-vec"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b47cca82fca99417fe405f09d93bb8fff90bdd03d13c631f18096ee123b4281c"
+checksum = "3372be4090bf9d4da36bd8ba7ce6ca1669503d0cf6e667236c6df7f053153eb6"
 dependencies = [
  "thiserror",
 ]