Merge pull request #495 from isuruf/freethreading #341

Job	Run time
build (Debug, yes, 3.12, yes, ubuntu-20.04, gcc)	3m 30s
build (Debug, yes, 3.11, yes, ubuntu-20.04, gcc)	3m 55s
build (Debug, yes, 3.10, yes, ubuntu-20.04, gcc)	3m 32s
build (Debug, yes, 3.9, yes, ubuntu-20.04, gcc)	3m 42s
build (Release, 3.8, yes, ubuntu-20.04, gcc)	4m 38s
build (Release, 3.8, yes, gmpxx, no, ubuntu-20.04, gcc)	5m 4s
build (Release, 3.8, yes, ubuntu-20.04, gcc)	5m 32s
build (Release, yes, 3.8, ubuntu-20.04, gcc)	4m 27s
build (Release, 3.9, yes, ubuntu-20.04, gcc)	4m 34s
build (Release, 3.9, yes, flint, yes, ubuntu-20.04, gcc)	6m 8s
build (Debug, 3.8, yes, yes, ubuntu-20.04, clang)	3m 17s
build (Release, 3.8, yes, ubuntu-20.04, clang)	4m 2s
build (Debug, 3.10, yes, 14, yes, boostmp, -k "not integer_nthroot", ubuntu-22.04, deb http://apt...	5m 13s
build (Debug, 3.8, yes, 5, macos-13, clang)	7m 54s
build (Release, 3.9, no, macos-13, clang)	6m 45s
build (Debug, 3.8, no, macos-13, gcc)	8m 1s
build (Release, 3.8, macos-13, gcc)	10m 5s
build (Release, 3.11, ubuntu-20.04, yes, yes, yes, yes, yes, yes, flint, yes, gcc)	4m 47s
	1h 35m 6s

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