Eagerly compute SHA's for watched files #11598

Job	Run time
lint_ruby	27s
spelling	13s
build_node (ubuntu-latest)	1m 27s
build_node (macos-latest)	2m 10s
Ruby 3.1 on ubuntu-latest	16m 4s
lint_node	47s
Ruby 3.2 on ubuntu-latest	14m 31s
build_node (windows-latest)	6m 18s
Ruby 3.3 on ubuntu-latest	10m 4s
Ruby 3.1 on macos-latest	8m 44s
Verify Jekyll website builds	8s
Ruby 3.2 on macos-latest	10m 18s
Ruby 3.3 on macos-latest	9m 44s
Ruby 3.1 on windows-latest	23m 5s
Ruby 3.2 on windows-latest	24m 45s
Ruby 3.3 on windows-latest	23m 7s
	2h 31m 52s

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