TST: add test package depending on a cmake subproject #2371

Job	Run time
cygwin (3.9)	7m 6s
mypy	13s
homebrew (3.8)	2m 10s
msvc (3.11)	2m 59s
pyston (3.8)	1m 16s
homebrew (3.11)	2m 25s
test (ubuntu, 3.7)	1m 28s
test (ubuntu, 3.12)	2m 1s
test (macos, 3.7)	2m 19s
test (macos, 3.12)	3m 3s
test (windows, 3.7)	3m 17s
test (windows, 3.12)	4m 30s
test (ubuntu, pypy-3.9)	4m 35s
test (ubuntu, pypy-3.10)	4m 45s
test (ubuntu, 3.8)	1m 32s
test (ubuntu, 3.9)	1m 56s
test (ubuntu, 3.10)	1m 43s
test (ubuntu, 3.11, ~=0.63.3)	1m 40s
test (ubuntu, 3.11, ~=0.64.0)	1m 44s
test (ubuntu, 3.11, ~=1.0.0)	1m 37s
test (ubuntu, 3.11, ~=1.1.0)	1m 37s
test (ubuntu, 3.12, ~=1.2.3)	1m 45s
test (ubuntu, 3.12, @git+https://github.com/mesonbuild/meson.git)	2m 3s
test (windows, 3.12, @git+https://github.com/mesonbuild/meson.git)	4m 19s
	1h 2m 3s

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