Bump lightning from 2.3.3 to 2.4.0

Bumps [lightning](https://github.com/Lightning-AI/lightning) from 2.3.3 to 2.4.0.
- [Release notes](https://github.com/Lightning-AI/lightning/releases)
- [Commits](Lightning-AI/pytorch-lightning@2.3.3...2.4.0)

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

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