chore(deps): bump rustix from 0.38.3 to 0.38.21 in /wasm (#18)

Bumps [rustix](https://github.com/bytecodealliance/rustix) from 0.38.3 to 0.38.21.
- [Release notes](https://github.com/bytecodealliance/rustix/releases)
- [Commits](bytecodealliance/rustix@v0.38.3...v0.38.21)

---
updated-dependencies:
- dependency-name: rustix
  dependency-type: indirect
...

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