Add launch mode integration tests #11197

Job	Run time
lint_ruby	11s
spelling	16s
build_node (ubuntu-latest)	1m 19s
build_node (macos-latest)	1m 36s
build_node (windows-latest)	5m 22s
Ruby 3.1 on ubuntu-latest	15m 22s
Ruby 3.2 on ubuntu-latest	14m 19s
lint_node	43s
Ruby 3.3 on ubuntu-latest	8m 40s
Ruby 3.1 on macos-latest	8m 8s
Verify Jekyll website builds	9s
Ruby 3.2 on macos-latest	9m 10s
Ruby 3.3 on macos-latest	7m 11s
Ruby 3.1 on windows-latest	20m 39s
Ruby 3.2 on windows-latest	20m 26s
Ruby 3.3 on windows-latest	18m 52s
	2h 12m 23s

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