Bump submodules/googletest from 9b12f74 to ec4fed9 (#3721)

Bumps [submodules/googletest](https://github.com/google/googletest) from `9b12f74` to `ec4fed9`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@9b12f74...ec4fed9)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>