build(deps): bump third_party/cctz from 4f25782 to d139743

Bumps [third_party/cctz](https://github.com/google/cctz) from `4f25782` to `d139743`.
- [Release notes](https://github.com/google/cctz/releases)
- [Commits](google/cctz@4f25782...d139743)

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

Signed-off-by: dependabot[bot] <[email protected]>