Bump googletest from `4a1a299` to `a7f443b` #707

Job	Run time
format-check	1m 21s
build-and-test (Linux-Docs)	1m 22s
build-and-test (Linux-GNU)	6m 32s
build-and-test (Linux-Clang)	5m 37s
build-and-test (Linux-Clang-libc++)	5m 21s
build-and-test (MacOS-Clang)	3m 18s
build-and-test (Release-Test)	5m 48s
	29m 19s

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