Bump libp2p from 0.44.0 to 0.45.0

Bumps [libp2p](https://github.com/libp2p/rust-libp2p) from 0.44.0 to 0.45.0.
- [Release notes](https://github.com/libp2p/rust-libp2p/releases)
- [Changelog](https://github.com/libp2p/rust-libp2p/blob/master/CHANGELOG.md)
- [Commits](libp2p/rust-libp2p@v0.44.0...v0.45.0)

---
updated-dependencies:
- dependency-name: libp2p
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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