Bump the cargo group with 3 updates

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


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 `rustls` from 0.21.7 to 0.21.12
- [Release notes](https://github.com/rustls/rustls/releases)
- [Changelog](https://github.com/rustls/rustls/blob/main/CHANGELOG.md)
- [Commits](rustls/rustls@v/0.21.7...v/0.21.12)

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

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