OLM update catalog automation fixes

This workflow isn't always triggered so allow workflow_dispatch
to call manually

Also updated to correctly detect and set branch name

Author: dprince

.github/workflows/catalog-openstack-operator-upgrades.yaml

@@ -32,8 +32,6 @@ env:
 jobs:
   build-catalog:
     runs-on: ubuntu-latest
-    #if: >
-    #  github.event.workflow_run.conclusion == 'success'
 
     steps:
     - name: Install Go