Add launch mode integration tests #11213

Job	Run time
spelling	14s
lint_node	35s
build_node (ubuntu-latest)	1m 4s
Ruby 3.1 on ubuntu-latest	14m 59s
build_node (macos-latest)	1m 12s
lint_ruby	21s
Ruby 3.2 on ubuntu-latest	16m 12s
build_node (windows-latest)	6m 19s
Verify Jekyll website builds	7s
Ruby 3.3 on ubuntu-latest	13m 49s
Ruby 3.1 on macos-latest	9m 18s
Ruby 3.2 on macos-latest	8m 16s
Ruby 3.3 on macos-latest	6m 25s
Ruby 3.1 on windows-latest	19m 44s
Ruby 3.2 on windows-latest	23m 14s
Ruby 3.3 on windows-latest	23m 49s
	2h 25m 38s

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