tests

ENH: add support for PEP 639 #2599

Job	Run time
msvc (3.11)	3m 29s
cygwin (3.9)	3m 32s
mypy	12s
homebrew (3.9)	1m 27s
homebrew (3.12)	2m 35s
pyston (3.8)	1m 32s
test (ubuntu-latest, 3.7)	1m 55s
test (ubuntu-latest, 3.13)	2m 35s
test (macos-13, 3.7)	4m 9s
test (macos-13, 3.13)	3m 57s
test (windows-latest, 3.7)	1m 16s
test (windows-latest, 3.13)	1m 20s
test (ubuntu-latest, pypy-3.9)	1m 35s
test (ubuntu-latest, pypy-3.10)	1m 36s
test (ubuntu-latest, 3.8)	1m 51s
test (ubuntu-latest, 3.9)	2m 6s
test (ubuntu-latest, 3.10)	2m 16s
test (ubuntu-latest, 3.11, ~=0.64.0)	2m 10s
test (ubuntu-latest, 3.11, ~=1.0.0)	2m 7s
test (ubuntu-latest, 3.11, ~=1.1.0)	2m 21s
test (ubuntu-latest, 3.12, ~=1.2.3)	2m 18s
test (ubuntu-latest, 3.12, ~=1.3.0)	2m 21s
test (ubuntu-latest, 3.12, ~=1.4.0)	2m 30s
test (ubuntu-latest, 3.12, ~=1.5.0)	2m 22s
test (ubuntu-latest, 3.12, @git+https://github.com/mesonbuild/meson.git)	2m 38s
test (windows-latest, 3.12, @git+https://github.com/mesonbuild/meson.git)	2m 6s
	58m 16s

Provide feedback