Add launch mode integration tests #11185

Job	Run time
lint_ruby	21s
spelling	12s
build_node (ubuntu-latest)	1m 4s
Ruby 3.1 on ubuntu-latest	16m 28s
build_node (macos-latest)	1m 12s
lint_node	28s
Ruby 3.2 on ubuntu-latest	14m 8s
build_node (windows-latest)	6m 48s
Ruby 3.3 on ubuntu-latest	13m 8s
Verify Jekyll website builds	9s
Ruby 3.1 on macos-latest	9m 18s
Ruby 3.2 on macos-latest	8m 17s
Ruby 3.3 on macos-latest	6m 52s
Ruby 3.1 on windows-latest	19m 37s
Ruby 3.2 on windows-latest	18m 33s
Ruby 3.3 on windows-latest	21m 31s
	2h 18m 6s

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