Bump rustc_version from 0.3.3 to 0.4.0 (#291)

Bumps [rustc_version](https://github.com/Kimundi/rustc-version-rs) from 0.3.3 to 0.4.0.
- [Release notes](https://github.com/Kimundi/rustc-version-rs/releases)
- [Commits](https://github.com/Kimundi/rustc-version-rs/compare/v0.3.3...v0.4.0

)

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

Signed-off-by: dependabot[bot] <[email protected]>

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