[main] (deps): Bump src/submodules/googletest (#55100)

Bumps [src/submodules/googletest](https://github.com/google/googletest) from `0af9766` to `b1a777f`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@0af9766...b1a777f)

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

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