build(deps-dev): bump pytorch-lightning in /runtimes/mlflow

Bumps [pytorch-lightning](https://github.com/Lightning-AI/lightning) from 2.4.0 to 2.5.0.post0.
- [Release notes](https://github.com/Lightning-AI/lightning/releases)
- [Commits](Lightning-AI/pytorch-lightning@2.4.0...2.5.0.post0)

---
updated-dependencies:
- dependency-name: pytorch-lightning
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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