Recent Commits to brotli:master

Bump actions/setup-python from 5.6.0 to 6.0.0

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.6.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/a26af69be951a213d495a4c3e4e4022e16d87065...e797f83bcb11b83ae66e0230d6156d7c80228e7c)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Bump softprops/action-gh-release from 2.3.2 to 2.3.3

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 2.3.2 to 2.3.3.
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](https://github.com/softprops/action-gh-release/compare/72f2c25fcb47643c292f7107632f7a47c1df5cd8...6cbd405e2c4e67a21c47fa9e383d020e4e28b836)

---
updated-dependencies:
- dependency-name: softprops/action-gh-release
  dependency-version: 2.3.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Build and test with PY2.7

PiperOrigin-RevId: 811352084

clarify that prepared dictionaries are "lean"

PiperOrigin-RevId: 811236534