Add launch mode integration tests #11198

Job	Run time
lint_ruby	22s
build_node (ubuntu-latest)	1m 4s
lint_node	28s
build_node (macos-latest)	1m 12s
Ruby 3.1 on ubuntu-latest	16m 22s
build_node (windows-latest)	5m 29s
spelling	13s
Ruby 3.2 on ubuntu-latest	15m 46s
Verify Jekyll website builds	9s
Ruby 3.3 on ubuntu-latest	9m 34s
Ruby 3.1 on macos-latest	8m 55s
Ruby 3.2 on macos-latest	10m 23s
Ruby 3.3 on macos-latest	7m 55s
Ruby 3.1 on windows-latest	21m 42s
Ruby 3.2 on windows-latest	21m 12s
Ruby 3.3 on windows-latest	22m 25s
	2h 23m 11s

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