tests

ENH: add support for PEP 639 #2563

Job	Run time
cygwin (3.9)	5m 22s
msvc (3.11)	3m 17s
mypy	17s
homebrew (3.9)	1m 16s
pyston (3.8)	1m 32s
homebrew (3.12)	1m 17s
test (ubuntu-latest, 3.7)	1m 46s
test (ubuntu-latest, 3.13)	2m 8s
test (macos-13, 3.7)	4m 5s
test (macos-13, 3.13)	4m 15s
test (windows-latest, 3.7)	4m 46s
test (windows-latest, 3.13)	5m 54s
test (ubuntu-latest, pypy-3.9)	5m 12s
test (ubuntu-latest, pypy-3.10)	5m 31s
test (ubuntu-latest, 3.8)	2m 31s
test (ubuntu-latest, 3.9)	2m 12s
test (ubuntu-latest, 3.10)	2m 23s
test (ubuntu-latest, 3.11, ~=0.63.3)	1m 58s
test (ubuntu-latest, 3.11, ~=0.64.0)	2m 25s
test (ubuntu-latest, 3.11, ~=1.0.0)	2m 12s
test (ubuntu-latest, 3.11, ~=1.1.0)	1m 55s
test (ubuntu-latest, 3.12, ~=1.2.3)	2m 11s
test (ubuntu-latest, 3.12, ~=1.3.0)	2m 14s
test (ubuntu-latest, 3.12, ~=1.4.0)	2m 16s
test (ubuntu-latest, 3.12, ~=1.5.0)	2m 17s
test (ubuntu-latest, 3.12, @git+https://github.com/mesonbuild/meson.git)	2m 15s
test (windows-latest, 3.12, @git+https://github.com/mesonbuild/meson.git)	5m 36s
test (ubuntu-latest, 3.12, ==0.8.0)	2m 9s
	1h 21m 12s

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