Bump github.com/JohannesKaufmann/html-to-markdown from 1.4.0 to 1.6.0 in /ruledocsgen #1234

Job	Run time
run-determination	1s
check-errors (./)	32s
check-outdated (./)	12s
check-errors (docsgen)	33s
check-outdated (docsgen)	20s
check-errors (ruledocsgen)	40s
check-outdated (ruledocsgen)	24s
check-formatting (./)	21s
check-style (./)	47s
check-formatting (docsgen)	13s
check-formatting (ruledocsgen)	14s
check-style (docsgen)	15s
check-style (ruledocsgen)	23s
check-config (./)	24s
check-config (docsgen)	23s
check-config (ruledocsgen)	20s
	6m 2s

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