tests

CI: install real ninja in Alpine Linux image #2348

Job	Run time
msvc (3.11)	2m 59s
test (ubuntu, 3.7)	1m 21s
cygwin (3.9)	4m 46s
homebrew (3.8)	2m 5s
mypy	16s
test (ubuntu, 3.12)	1m 46s
pyston (3.8)	1m 9s
test (macos, 3.7)	1m 59s
homebrew (3.11)	1m 41s
test (macos, 3.12)	2m 38s
test (windows, 3.7)	3m 29s
test (windows, 3.12)	4m 46s
test (ubuntu, pypy-3.9)	4m 47s
test (ubuntu, pypy-3.10)	4m 27s
test (ubuntu, 3.8)	1m 32s
test (ubuntu, 3.9)	1m 31s
test (ubuntu, 3.10)	2m 10s
test (ubuntu, 3.11, ~=0.63.3)	1m 44s
test (ubuntu, 3.11, ~=0.64.0)	1m 55s
test (ubuntu, 3.11, ~=1.0.0)	1m 32s
test (ubuntu, 3.11, ~=1.1.0)	2m 7s
test (ubuntu, 3.12, ~=1.2.3)	1m 50s
test (ubuntu, 3.12, @git+https://github.com/mesonbuild/meson.git)	1m 48s
test (windows, 3.12, @git+https://github.com/mesonbuild/meson.git)	3m 59s
	58m 17s

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