Bump websockets from 14.2 to 15.0 in the python-packages group

Bumps the python-packages group with 1 update: [websockets](https://github.com/python-websockets/websockets).


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: websockets
  dependency-type: indirect
  update-type: version-update:semver-major
  dependency-group: python-packages
...

Signed-off-by: dependabot[bot] <[email protected]>