Bump submodules/googletest from 73a63ea to a35bc76 (#177)

Bumps [submodules/googletest](https://github.com/google/googletest) from `73a63ea` to `a35bc76`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@73a63ea...a35bc76)

---
updated-dependencies:
- dependency-name: submodules/googletest
  dependency-version: a35bc7693c117a048152beeb34f6aac354b9423f
  dependency-type: direct:production
...

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Author: dependabot[bot]