Bump axum-prometheus from 0.4.0 to 0.6.1 in /axum1

Bumps [axum-prometheus](https://github.com/Ptrskay3/axum-prometheus) from 0.4.0 to 0.6.1.
- [Release notes](https://github.com/Ptrskay3/axum-prometheus/releases)
- [Changelog](https://github.com/Ptrskay3/axum-prometheus/blob/master/CHANGELOG.md)
- [Commits](Ptrskay3/axum-prometheus@0.4.0...0.6.1)

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

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