Add msys2 option #137

Job	Run time
test-cache (macos-12, 2.0.2)	55s
test-cache (macos-12, 1.2.2)	1m 7s
test-cache (macos-12, nightly)	51s
test-cache (macos-12, master)	3m 38s
test-cache (macos-14, 2.0.2)	42s
test-cache (macos-14, nightly)	35s
test-cache (macos-14, master)	2m 46s
test-cache (macos-latest, 2.0.2)	39s
test-cache (macos-latest, nightly)	38s
test-cache (macos-latest, master)	4m 19s
test-cache (ubuntu-latest, 2.0.2)	35s
test-cache (ubuntu-latest, 1.2.2)	42s
test-cache (ubuntu-latest, nightly)	50s
test-cache (ubuntu-latest, master)	3m 29s
test-cache (windows-latest, 2.0.2)	1m 52s
test-cache (windows-latest, 1.2.2)	5m 2s
test-cache (windows-latest, nightly)	1m 52s
test-cache (windows-latest, master)	5m 56s
	36m 28s

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