Recent Commits to brotli:master

Lint Python code with ruff

Bump github/codeql-action from 4.31.2 to 4.31.3

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 4.31.2 to 4.31.3.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/0499de31b99561a6d14a36a5f662c2a54f91beee...014f16e7ab1402f30e7c3329d33797e7948572db)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: 4.31.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Modernize tests.

Avoid file IO.
Drive-by: drop bro.py and bro_test.py; we do not support it well and likely no one uses it.
PiperOrigin-RevId: 834206605