Description of problem: 

While enabling keycloak for 1.9.1 and 1.9.0, keycloak pod is not able to pull keycloak image.

Prerequisites (if any, like setup, operators/versions):

occuring on 1.9 and 1.9.1 RC

Steps to Reproduce

Remove dex configuration from ArgoCD CR
$ oc -n openshift-gitops patch argocd openshift-gitops --type='json' -p='[

]'

Add to the ArgoCD CR :

$ oc edit argocd -n openshift-gitops 

Add below snippet code 

spec:
  extraConfig:
    oidc.tls.insecure.skip.verify: 'true' 
  sso:
    provider: keycloak
    keycloak:
      rootCA: "---BEGIN---END---" 

Restart argocd server pod
$ oc rollout restart deployment.apps/openshift-gitops-server -n openshift-gitops

Actual results:

Failing with ImagePullBackOff error 

Back-off pulling image "registry.redhat.io/rh-sso-7/sso75-openshift-rhel8@sha256:d5829e880db4b82a50a4962d61ea148522a93644174931b256d7ad866eadcf40"

Expected results:

keycloak-1-deploy pod should be up without any error

Reproducibility (Always/Intermittent/Only Once): always

Acceptance criteria: 

• KeyCloak pod should be up 
• we should be able to log in using keyCloak sso 

Definition of Done:
**

• Acceptance criteria are met

Build Details:

Additional info (Such as Logs, Screenshots, etc):

log:
Back-off pulling image "registry.redhat.io/rh-sso-7/sso75-openshift-rhel8@sha256:d5829e880db4b82a50a4962d61ea148522a93644174931b256d7ad866eadcf40"

 *