Test ArgoCD UI Login as part of 18.3 release

Test Steps:

• Try the logging in method by following Visualize your applications via the Argo CD UI section in https://spaces.redhat.com/pages/viewpage.action?spaceKey=GITOPS&title=KAM+and+DevConsole+end+to+end+Tests 
• 1) Install GitOps operator on your cluster
  2) Navigate to Networking -> Routes in openshift-gitops project, click on the link that takes you to the ArgoCD UI page
  3) Try to Log In Via Openshift
• 1. Remove dex configuration from ArgoCD CR

           *$ oc -n openshift-gitops patch argocd openshift-gitops --type='json' -p='[

]'* 

           2. Add to the ArgoCD CR :

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

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

         4. Wait for keycloak-1-deploy pod in openshift-gitops namespace to be completed

         5. Navigate to Networking -> Routes in openshift-gitops project and click on the link that takes you to the ArgoCD UI page

         6. LOG IN VIA KEYCLOAK, Log in with openshift and follow the instructions

Acceptance Criteria:

• Login is successful with all three approaches