Build: Bump polars from 1.39.0 to 1.39.3

Bumps [polars](https://github.com/pola-rs/polars) from 1.39.0 to 1.39.3.
- [Release notes](https://github.com/pola-rs/polars/releases)
- [Commits](pola-rs/polars@py-1.39.0...py-1.39.3)

---
updated-dependencies:
- dependency-name: polars
  dependency-version: 1.39.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]