Bump submodules/googletest from c875c4e to 455fcb7 (#3792)

Bumps [submodules/googletest](https://github.com/google/googletest) from `c875c4e` to `455fcb7`.
- [Release notes](https://github.com/google/googletest/releases)
- [Commits](google/googletest@c875c4e...455fcb7)

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

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