ENH: Extension should be able to accept PathLike sources objects #1042

Job	Run time
ci_setuptools (3.10, ubuntu-latest)	4m 1s
collateral (diffcov)	46s
test (3.8, ubuntu-latest)	41s
collateral (docs)	34s
test_cygwin (39, windows-latest)	6m 3s
test (3.8, macos-latest)	1m 12s
test (3.8, windows-latest)	2m 4s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	2m 11s
test (3.12, ubuntu-latest)	47s
test_msys2_mingw (mingw32, i686, gcc, g++)	2m 28s
test (3.12, macos-latest)	55s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	2m 15s
test (3.12, windows-latest)	2m 4s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	2m 20s
test (3.9, ubuntu-latest)	41s
test (3.10, ubuntu-latest)	53s
test (3.11, ubuntu-latest)	37s
test (pypy3.10, ubuntu-latest)	1m 33s
check	4s
release	0s
	32m 9s

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