Bump websockets from 11.0.3 to 12.0 (#544)

Bumps [websockets](https://github.com/python-websockets/websockets) from 11.0.3 to 12.0.
- [Release notes](https://github.com/python-websockets/websockets/releases)
- [Commits](python-websockets/websockets@11.0.3...12.0)

---
updated-dependencies:
- dependency-name: websockets
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]