deps: bump @libp2p/prometheus-metrics from 4.2.4 to 4.3.0

Bumps [@libp2p/prometheus-metrics](https://github.com/libp2p/js-libp2p) from 4.2.4 to 4.3.0.
- [Release notes](https://github.com/libp2p/js-libp2p/releases)
- [Changelog](https://github.com/libp2p/js-libp2p/blob/main/.release-please.json)
- [Commits](libp2p/js-libp2p@peer-id-v4.2.4...prometheus-metrics-v4.3.0)

---
updated-dependencies:
- dependency-name: "@libp2p/prometheus-metrics"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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