Enable free-threaded wheel builds #1006

Job	Run time
list	19s
test (tests-3.9)	1m 23s
test (tests-3.10)	1m 8s
test (tests-pypy3.10)	1m 11s
test (tests-3.11)	57s
test (tests-3.12)	58s
test (tests-3.13)	50s
test (tests-3.13t)	57s
test (audit)	55s
test (build)	1m 12s
test (style)	38s
test (typing)	1m 5s
test (docs(dirhtml))	1m 6s
test (docs(doctest))	1m 23s
test (docs(linkcheck))	1m 42s
test (docs(man))	1m 5s
test (docs(spelling))	1m 3s
test (docs(style))	47s
macos (x86_64)	2m 57s
sdist	23s
macos (aarch64)	3m 4s
musllinux (aarch64-unknown-linux-musl)	1m 22s
manylinux (x86_64)	1m 42s
musllinux (i686-unknown-linux-musl)	1m 16s
manylinux (x86)	2m 26s
windows (x64)	5m 37s
musllinux (x86_64-unknown-linux-musl)	1m 19s
manylinux (aarch64)	1m 54s
windows (x86)	6m 7s
manylinux (armv7)	2m 2s
manylinux (s390x)	1m 54s
manylinux (ppc64le)	1m 55s
release	0s
	52m 37s

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