Locate targets under mutex lock #12013

Job	Run time
build_node (ubuntu-latest)	2m 8s
build_node (macos-latest)	2m 29s
build_node (windows-latest)	5m 6s
Ruby 3.1 on ubuntu-latest	11m 40s
Ruby 3.2 on ubuntu-latest	10m 32s
lint_node	27s
Ruby 3.3 on ubuntu-latest	9m 45s
Ruby 3.1 on macos-latest	9m 33s
Ruby 3.2 on macos-latest	8m 22s
lint_ruby	20s
spelling	14s
Ruby 3.3 on macos-latest	5m 49s
Ruby 3.1 on windows-latest	19m 34s
Ruby 3.2 on windows-latest	20m 2s
Verify Jekyll website builds	8s
Ruby 3.3 on windows-latest	24m 18s
	2h 10m 27s

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