Bump rustix from 0.36.13 to 0.36.16 in /tools/runtime-codegen

Bumps [rustix](https://github.com/bytecodealliance/rustix) from 0.36.13 to 0.36.16.
- [Release notes](https://github.com/bytecodealliance/rustix/releases)
- [Commits](https://github.com/bytecodealliance/rustix/compare/v0.36.13...v0.36.16)

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

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