Bump action-docs from 2.3.0 to 2.4.0 #235

Job	Run time
test-generate	2s
test (ubuntu-latest, nightly)	5m 57s
test (ubuntu-latest, lts)	6m 9s
test (ubuntu-latest, lts-22.7, 9.6.4)	5m 42s
test (ubuntu-latest, lts-12.26, 8.4.4)	4m 59s
test (macOS-latest, nightly)	9m 40s
test (macOS-latest, lts)	7m 35s
test (macOS-latest, lts-22.7, 9.6.4)	8m 11s
test (macOS-latest, lts-12.26, 8.4.4)	5m 46s
test (windows-latest, nightly)	9m 18s
test (windows-latest, lts)	7m 0s
test (windows-latest, lts-22.7, 9.6.4)	7m 24s
test (windows-latest, lts-12.26, 8.4.4)	6m 38s
test-stack-yamls (stack-nightly.yaml)	5m 52s
test-stack-yamls (stack.yaml)	4m 49s
	1h 35m 2s

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