Recent Commits to brotli:master

Merge pull request #1392 from cclauss:comprehensions

PiperOrigin-RevId: 836153778

Merge branch 'master' into comprehensions

Fix one-off in dcheck.

How to prove correctness:
1) when `position` is `0`, `max_length` is allowed to be `ringbuffer_size`
2) in other words: `position + max_length <= ringbuffer_size`
3) `ringbuffer_mask == ringbuffer_size - 1`
4) thus `position + max_length <= ringbuffer_size + 1`

PiperOrigin-RevId: 836145553

Merge branch 'master' into comprehensions

Merge pull request #1397 from google:dependabot/github_actions/actions/checkout-6.0.0

PiperOrigin-RevId: 836136994

Bump actions/checkout from 5.0.0 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/08c6903cd8c0fde910a37f88322edcfb5dd907a8...1af3b93b6815bc44a9784bd300feb67ff0d1eeb3)

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

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