Set operator_version for git builds

The shared workflow now supports this parameter and
it is recommended to use it for openstack-operator which
we version to provide "update" capable OLM catalogs

Author: dprince

.github/workflows/build-openstack-operator.yaml

@@ -18,6 +18,7 @@ jobs:
       go_version: 1.24.x
       operator_sdk_version: 1.31.0
       bundle_dockerfile: ./bundle.Dockerfile
+      operator_version: 0.4.0
     secrets:
       IMAGENAMESPACE: ${{ secrets.IMAGENAMESPACE }}
       QUAY_USERNAME: ${{ secrets.QUAY_USERNAME }}