Disable CI completion step in workflow

Author: enaples

.github/workflows/ci.yaml

@@ -699,6 +699,7 @@ jobs:
     # signals successful completion. Used for the PR status to pass
     # before merging.  Needs to run even if they failed!
     name: CI completion
+    if: false
     runs-on: ubuntu-22.04
     needs:
       - integration