Create SSO Cypress tests

Create cypress tests for each package to test SSO integration when installed with bigbang.

So that the SSO test doesn't run during package tests, the cypress test will check for an environment variable that will be set only in bigbang.

SSO enabled apps include:

• Twistlock
• Kiali
• Kibana
• ArgoCD
• Gitlab
• Mattermost
• Grafana
• Sonarqube
• Authservice apps:
  • Jaeger
  • Prometheus
  • Alertmanager

Also:

• Ensure a test user is created in keycloak for the integration tests to use.