tests

MAINT: set version to 0.20.0.dev0 #59

Job	Run time
homebrew (3.9)	2m 36s
mypy	22s
msvc (3.11)	3m 33s
cygwin (3.9)	7m 34s
homebrew (3.12)	2m 38s
test (windows-latest, 3.9)	4m 36s
test (ubuntu-latest, 3.14)	1m 59s
test (ubuntu-latest, 3.11, ~=1.0.0)	1m 53s
test (ubuntu-latest, 3.10)	2m 7s
test (ubuntu-latest, 3.12, ~=1.2.3)	1m 45s
test (macos-15-intel, 3.14)	3m 59s
test (ubuntu-latest, pypy-3.11)	3m 9s
test (windows-latest, 3.14, @git+https://github.com/mesonbuild/meson.git)	4m 35s
test (ubuntu-latest, 3.13, ~=1.8.0)	2m 13s
test (macos-15-intel, 3.9)	3m 47s
test (ubuntu-latest, 3.12, ~=1.3.0)	1m 45s
test (ubuntu-latest, 3.12, ~=1.6.0, pyproject-metadata==0.9.0)	1m 57s
test (ubuntu-latest, 3.12, ~=1.4.0)	2m 4s
test (ubuntu-latest, 3.11, ~=1.1.0)	1m 40s
test (ubuntu-latest, 3.11, ~=0.64.0)	1m 50s
test (ubuntu-latest, 3.12, ~=1.5.0, packaging==23.2 pyproject-metadata==0.9.0)	1m 57s
test (ubuntu-latest, pypy-3.9)	3m 6s
test (windows-latest, 3.14)	3m 56s
test (ubuntu-latest, 3.12, ~=1.7.0, packaging==23.2)	2m 0s
test (ubuntu-latest, 3.9)	2m 7s
test (ubuntu-latest, 3.14, @git+https://github.com/mesonbuild/meson.git)	2m 11s
	1h 11m 19s

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