Move GCC 8+ warning supression to winAPI #79

Job	Run time
posix (gcc-4.8, ubuntu-latest, ubuntu:18.04, 11, g++-4.8)	25m 54s
posix (gcc-5, 11, ubuntu-latest, ubuntu:18.04, g++-5)	22m 39s
posix (gcc-7, ubuntu-20.04, g++-7)	24m 59s
posix (gcc-9, ubuntu-20.04)	28m 30s
posix (gcc-11, ubuntu-22.04)	28m 41s
posix (clang, clang++-15, 20, ubuntu-22.04, clang-15)	33m 58s
posix (clang, macos-11, 11)	1s
posix (clang, macos-12, 14)	27m 48s
posix (clang, macos-13, 17)	38m 52s
	3h 51m 22s

Provide feedback