More opam package testing #4725

Job	Run time
macOS 13 (x86_64)	3h 28m 13s
macOS 14 (arm64)	1h 59m 17s
combine-standalone	12s
test-standalone (macos-13)	13s
publish-standalone	13s
test-standalone (macos-14)	11s
publish-standalone (-x86_64)	13s
test-standalone (macos-latest)	13s
publish-standalone (-arm64)	15s
test-standalone (-x86_64, macos-13)	20s
test-standalone (-x86_64, macos-14)	13s
test-standalone (-x86_64, macos-latest)	13s
test-standalone (-arm64, macos-14)	10s
test-standalone (-arm64, macos-latest)	10s
macos-check-all	1s
	5h 30m 7s

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