build(deps): bump third_party/cctz from 5b5c77d to 4f25782 (#2392)

Bumps [third_party/cctz](https://github.com/google/cctz) from `5b5c77d` to `4f25782`.
- [Release notes](https://github.com/google/cctz/releases)
- [Commits](google/cctz@5b5c77d...4f25782)

---
updated-dependencies:
- dependency-name: third_party/cctz
  dependency-type: direct:production
...

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