Bump @patternfly/react-core from 4.276.6 to 6.1.0 #2415

Job	Run time
run (admin-ui, lint)	1m 10s
run (admin-ui, test)	1m 2s
run (admin-ui, build)	1m 25s
run (admin-ui, cy:check-types)	1m 24s
run (admin-ui, cy:run-component)	1m 31s
run (account-ui, lint)	1m 19s
run (account-ui, build)	1m 22s
run (@keycloak/keycloak-admin-client, lint)	1m 20s
run (@keycloak/keycloak-admin-client, build)	1m 16s
run (keycloak-masthead, lint)	51s
run (keycloak-masthead, build)	1m 2s
dependabot	0s
	13m 42s

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