tests

cygwinccompiler: Get the compilers from sysconfig #83

Job	Run time
collateral (diffcov)	42s
ci_setuptools (3.10, ubuntu-latest)	3m 29s
collateral (docs)	26s
test (3.8, ubuntu-latest)	44s
test (3.8, macos-latest)	1m 22s
test_cygwin (39, windows-latest)	3m 51s
test (3.8, windows-latest)	2m 4s
test_msvc_python_mingw	2m 33s
test (3.12, ubuntu-latest)	44s
test (3.12, macos-latest)	41s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	1m 38s
test (3.12, windows-latest)	2m 30s
test_msys2_mingw (mingw32, i686, gcc, g++)	2m 0s
test (3.9, ubuntu-latest)	43s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	1m 39s
test (3.10, ubuntu-latest)	39s
test (3.11, ubuntu-latest)	36s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	1m 52s
test (pypy3.10, ubuntu-latest)	1m 54s
check	4s
release	0s
	30m 11s

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