build(deps): bump rpm from 0.14.0 to 0.15.0

Bumps [rpm](https://github.com/rpm-rs/rpm) from 0.14.0 to 0.15.0.
- [Changelog](https://github.com/rpm-rs/rpm/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rpm-rs/rpm/commits)

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

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