Update jboss/keycloak Docker tag to v11

This MR contains the following updates:

Package	Type	Update	Change
jboss/keycloak	ironbank-docker	major	10.0.2 -> 11.0.0
jboss/keycloak		major	10.0.2 -> 11.0.0
jboss/keycloak	stage	major	10.0.2 -> 11.0.0

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