Use rotary alias packages for CI (#602) #122

Job	Run time
test / matrix-prep-os	4s
test / matrix-prep-bazelversion	6s
test / test (macos-latest, 8.0.0, ., true)	4m 18s
test / test (ubuntu-latest, 8.0.0, ., true)	18m 45s
test / test (macos-latest, 7.3.1, ., true)	3m 35s
test / test (ubuntu-latest, 7.3.1, ., true)	18m 45s
	45m 33s

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