build(deps): bump third_party/googletest from 7c07a86 to 96cd50c

Bumps [third_party/googletest](https://github.com/google/googletest) from `7c07a86` to `96cd50c`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@7c07a86...96cd50c)

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

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