gtest: Enable GTests in CI workflows #318

Job	Run time
Build on ubuntu-20.04 g++-9	1m 6s
Build on ubuntu-20.04 g++-10	1m 9s
Build on ubuntu-22.04 g++-11	1m 4s
Build on ubuntu-22.04 g++-12	1m 12s
Build on ubuntu-24.04 g++-13	1m 18s
Build on ubuntu-24.04 g++-14	2m 18s
Build on ubuntu-20.04 clang-10	57s
Build on ubuntu-20.04 clang-11	1m 18s
Build on ubuntu-22.04 clang-12	1m 9s
Build on ubuntu-22.04 clang-13	1m 0s
Build on ubuntu20.04 aarch64 g++-9	8m 5s
Build on ubuntu-22.04 clang-14	59s
Build on ubuntu20.04 aarch64 g++-10	8m 30s
Build on ubuntu-22.04 clang-15	1m 7s
Build on ubuntu22.04 aarch64 g++-12	7m 57s
Build on ubuntu-24.04 clang-16	1m 7s
Build on ubuntu20.04 aarch64 clang-9	8m 25s
Build on ubuntu-24.04 clang-17	1m 4s
Build static on ubuntu-latest	1m 5s
build-macos (macos-13)	1m 15s
Build on ubuntu20.04 aarch64 clang-10	12m 41s
Build on ubuntu-24.04 clang-18	1m 5s
build-macos (macos-latest)	39s
Build on ubuntu22.04 aarch64 clang-14	8m 35s
build-windows	22s
build-macos (flyci-macos-large-latest-m2)	26s
Build on ubuntu22.04 aarch64 clang-15	11m 46s
Build on ubuntu22.04 armv7 g++	5m 22s
Build on ubuntu22.04 ppc64le g++-12	4m 51s
Build on ubuntu22.04 s390x g++-12	4m 41s
Build on ubuntu22.04 riscv64 g++-12	4m 24s
	1h 46m 57s

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