* Use `7.0.0-beta-5.0` Keycloak docker image
* use `/scripts` as home dir for `kcadm`
* Add `runAsUser` on Postgres for k8s
* Update k8s security context from upstream
* update the CR with security context settings
* Fix a bug with `openshiftoAuth: true` on K8S
Signed-off-by: David Festal <dfestal@redhat.com>