⬆ Bump the python-packages group with 4 updates

Bumps the python-packages group with 4 updates: [fastapi](https://github.com/fastapi/fastapi), [ruff](https://github.com/astral-sh/ruff), [ty](https://github.com/astral-sh/ty) and [prek](https://github.com/j178/prek).


Updates `fastapi` from 0.138.0 to 0.139.0
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.138.0...0.139.0)

Updates `ruff` from 0.15.19 to 0.15.20
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.19...0.15.20)

Updates `ty` from 0.0.53 to 0.0.56
- [Release notes](https://github.com/astral-sh/ty/releases)
- [Changelog](https://github.com/astral-sh/ty/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ty@0.0.53...0.0.56)

Updates `prek` from 0.4.5 to 0.4.6
- [Release notes](https://github.com/j178/prek/releases)
- [Changelog](https://github.com/j178/prek/blob/master/CHANGELOG.md)
- [Commits](j178/prek@v0.4.5...v0.4.6)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.139.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: ruff
  dependency-version: 0.15.20
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: ty
  dependency-version: 0.0.56
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: prek
  dependency-version: 0.4.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
...

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Author: dependabot[bot]