Deps: Bump the python-packages group with 4 updates

Bumps the python-packages group with 4 updates: [lxml](https://github.com/lxml/lxml), [coverage](https://github.com/nedbat/coveragepy), [ruff](https://github.com/astral-sh/ruff) and [websockets](https://github.com/python-websockets/websockets).


Updates `lxml` from 5.3.0 to 5.3.1
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-5.3.0...lxml-5.3.1)

Updates `coverage` from 7.6.11 to 7.6.12
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.11...7.6.12)

Updates `ruff` from 0.9.5 to 0.9.6
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.9.5...0.9.6)

Updates `websockets` from 14.2 to 15.0
- [Release notes](https://github.com/python-websockets/websockets/releases)
- [Commits](python-websockets/websockets@14.2...15.0)

---
updated-dependencies:
- dependency-name: lxml
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: coverage
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: ruff
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: websockets
  dependency-type: indirect
  update-type: version-update:semver-major
  dependency-group: python-packages
...

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