build(deps): bump datafusion from 50.2.0 to 50.3.0

Bumps [datafusion](https://github.com/apache/datafusion) from 50.2.0 to 50.3.0.
- [Changelog](https://github.com/apache/datafusion/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion@50.2.0...50.3.0)

---
updated-dependencies:
- dependency-name: datafusion
  dependency-version: 50.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]