tests

Fix test_mkpath_exception_uncached #1210

Job	Run time
ci_setuptools (3.10, ubuntu-latest)	4m 2s
test_cygwin (39, windows-latest)	5m 5s
collateral (diffcov)	56s
test (3.9, ubuntu-latest)	47s
collateral (docs)	26s
test (3.9, macos-latest)	1m 1s
test_msvc_python_mingw	2m 21s
test (3.9, windows-latest)	49s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	1m 52s
test (3.13, ubuntu-latest)	59s
test_msys2_mingw (mingw32, i686, gcc, g++)	1m 57s
test (3.13, macos-latest)	50s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	1m 49s
test (3.13, windows-latest)	51s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	1m 54s
test (3.10, ubuntu-latest)	1m 2s
test (3.11, ubuntu-latest)	1m 4s
test (3.12, ubuntu-latest)	54s
test (3.14, ubuntu-latest)	1m 12s
test (pypy3.10, ubuntu-latest)	1m 3s
check	3s
release	0s
	30m 57s

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