Bump the cargo group across 1 directory with 3 updates

Bumps the cargo group with 3 updates in the /rust directory: [h2](https://github.com/hyperium/h2), [mio](https://github.com/tokio-rs/mio) and [rustix](https://github.com/bytecodealliance/rustix).


Updates `h2` from 0.3.21 to 0.3.26
- [Release notes](https://github.com/hyperium/h2/releases)
- [Changelog](https://github.com/hyperium/h2/blob/v0.3.26/CHANGELOG.md)
- [Commits](hyperium/h2@v0.3.21...v0.3.26)

Updates `mio` from 0.8.8 to 0.8.11
- [Release notes](https://github.com/tokio-rs/mio/releases)
- [Changelog](https://github.com/tokio-rs/mio/blob/master/CHANGELOG.md)
- [Commits](tokio-rs/mio@v0.8.8...v0.8.11)

Updates `rustix` from 0.38.10 to 0.38.34
- [Release notes](https://github.com/bytecodealliance/rustix/releases)
- [Commits](bytecodealliance/rustix@v0.38.10...v0.38.34)

---
updated-dependencies:
- dependency-name: h2
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: mio
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: rustix
  dependency-type: indirect
  dependency-group: cargo
...

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