Bump rustix from 0.38.18 to 0.38.20

Bumps [rustix](https://github.com/bytecodealliance/rustix) from 0.38.18 to 0.38.20.
- [Release notes](https://github.com/bytecodealliance/rustix/releases)
- [Commits](bytecodealliance/rustix@v0.38.18...v0.38.20)

---
updated-dependencies:
- dependency-name: rustix
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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