Pass index to enhancement's constructor #11149

Job	Run time
lint_ruby	12s
build_node (ubuntu-latest)	1m 11s
lint_node	27s
build_node (macos-latest)	2m 16s
build_node (windows-latest)	7m 37s
Ruby 3.1 on ubuntu-latest	15m 26s
spelling	14s
Verify Jekyll website builds	7s
Ruby 3.2 on ubuntu-latest	14m 29s
Ruby 3.3 on ubuntu-latest	9m 49s
Ruby 3.1 on macos-latest	13m 12s
Ruby 3.2 on macos-latest	11m 8s
Ruby 3.3 on macos-latest	7m 1s
Ruby 3.1 on windows-latest	20m 30s
Ruby 3.2 on windows-latest	20m 8s
Ruby 3.3 on windows-latest	21m 7s
	2h 24m 54s

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