Bump external/googletest from a7f443b to 34ad51b (ParadoxGameConv…

…erters#260)

Bumps [external/googletest](https://github.com/google/googletest) from `a7f443b` to `34ad51b`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@a7f443b...34ad51b)

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

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