build(deps): bump third_party/cctz from `bb0595b` to `5b5c77d` (#2357)

Bumps [third_party/cctz](https://github.com/google/cctz) from `bb0595b` to `5b5c77d`.
- [Release notes](https://github.com/google/cctz/releases)
- [Commits](https://github.com/google/cctz/compare/bb0595b6249031abe83e972ee13571d7f0e655ed...5b5c77df48fdffb60e492a159d03a05203d820e2)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/cctz b/third_party/cctz
index bb0595b..5b5c77d 160000
--- a/third_party/cctz
+++ b/third_party/cctz
@@ -1 +1 @@
-Subproject commit bb0595b6249031abe83e972ee13571d7f0e655ed
+Subproject commit 5b5c77df48fdffb60e492a159d03a05203d820e2