ROX-27432: allow regex in authentication claimrules (#1441) #451

Job	Run time
lint / actionlint	5s
lint / golint	1m 35s
build-and-push / build-and-push-certifier	1m 30s
build-and-push / build-and-push-server	4m 54s
lint / shellcheck	50s
unit-tests / unit-test	2m 46s
	11m 40s

Provide feedback