build(deps): bump third_party/cctz from ee24973 to c8cd07c (#2237)

Bumps [third_party/cctz](https://github.com/google/cctz) from `ee24973` to `c8cd07c`.
- [Release notes](https://github.com/google/cctz/releases)
- [Commits](google/cctz@ee24973...c8cd07c)

---
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>