OZG-3328 cleanup and add helm unittests;OZG-5115 update helm unittest command

src/test/helm/imagepull_secret_test.yaml

src/test/helm/ingress_nginx_cors_test.yaml

src/test/helm/ingress_nginx_test.yaml

src/test/helm/keycloak_user_crd_test.yaml

...oud_keycloak_operator_secrets_read_role_binding_test.yaml

...lm/ozgcloud_keycloak_operator_secrets_read_role_test.yaml

...ud_keycloak_operator_secrets_write_role_binding_test.yaml

...m/ozgcloud_keycloak_operator_secrets_write_role_test.yaml

src/test/helm/service_account_test.yaml

src/test/helm/service_monitor_test.yaml

src/test/helm/service_test.yaml