Bump github.com/olekukonko/tablewriter in /ruledocsgen #1662

Job	Run time
run-determination	3s
check-outdated (docsgen)	16s
check-errors (./)	45s
check-outdated (ruledocsgen)	17s
check-errors (ruledocsgen)	51s
check-outdated (./)	16s
check-errors (docsgen)	50s
check-formatting (./)	17s
check-config (docsgen)	24s
check-formatting (ruledocsgen)	22s
check-formatting (docsgen)	17s
check-style (docsgen)	24s
check-style (./)	24s
check-style (ruledocsgen)	24s
check-config (ruledocsgen)	23s
check-config (./)	33s
	6m 46s

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