add just target for book and actionlint, fix actionlint #81

Job	Run time
test (framework)	4m 6s
test (parrot)	4m 0s
test (wasp)	6m 32s
test (seth)	4m 55s
test (havoc)	4m 42s
test (k8s-test-runner)	4m 26s
test (lib)	5m 53s
test (tools/workflowresultparser)	3m 40s
test (tools/asciitable)	3m 39s
test (tools/ghlatestreleasechecker)	3m 35s
test (tools/testlistgenerator)	3m 39s
test (tools/ecrimagefetcher)	3m 42s
test (tools/gotestloghelper)	3m 29s
	56m 18s

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