Bump cc from 1.2.20 to 1.2.21 (#455)

Bumps [cc](https://github.com/rust-lang/cc-rs) from 1.2.20 to 1.2.21.
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](rust-lang/cc-rs@cc-v1.2.20...cc-v1.2.21)

---
updated-dependencies:
- dependency-name: cc
  dependency-version: 1.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]