build(deps-dev): bump pytorch-lightning in /runtimes/mlflow (#1720)

Bumps [pytorch-lightning](https://github.com/Lightning-AI/lightning) from 2.2.2 to 2.2.3.
- [Release notes](https://github.com/Lightning-AI/lightning/releases)
- [Commits](Lightning-AI/pytorch-lightning@2.2.2...2.2.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

runtimes/mlflow/pyproject.toml

@@ -16,7 +16,7 @@ pydantic = "<2.0.0"
 [tool.poetry.group.dev.dependencies]
 mlserver = {path = "../..", develop = true}
 torch = "2.2.1"
-pytorch-lightning = "2.2.2"
+pytorch-lightning = "2.2.3"
 torchmetrics = "1.3.2"
 torchvision = "0.17.1"
 mlflow = "2.12.1"