Fixed 'stringer' by upgrading a lot of go-lang internal libraries #1285

Job	Run time
run-determination	1s
check-errors (./)	41s
check-config (./)	15s
check-errors (docsgen)	35s
check-errors (ruledocsgen)	37s
check-config (docsgen)	17s
check-config (ruledocsgen)	15s
check-formatting (./)	8s
check-outdated (./)	12s
check-formatting (docsgen)	9s
check-outdated (docsgen)	16s
check-outdated (ruledocsgen)	8s
check-style (./)	17s
check-style (docsgen)	39s
check-formatting (ruledocsgen)	11s
check-style (ruledocsgen)	20s
	5m 1s

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