Merge pull request #1353 from theobarberbany/update-gcp-cred-req

OCPBUGS-55083: Updates GCP CredentialsRequest

Author: openshift-merge-bot[bot]

install/0000_30_machine-api-operator_00_credentials-request.yaml

@@ -176,6 +176,7 @@ spec:
     - "compute.healthChecks.useReadOnly"
     - "compute.images.get"
     - "compute.images.getFromFamily"
+    - "compute.images.useReadOnly"
     - "compute.instanceGroups.create"
     - "compute.instanceGroups.delete"
     - "compute.instanceGroups.get"