cicd: a series of small improvements

.github/workflows/CICD.yml

@@ -24,14 +24,14 @@ jobs:
     steps:
       - name: Get PR head ref
         if: ${{ github.event_name == 'pull_request' }}
-        id: ref
+        id: pr_head_ref
         run: |
           echo "ref=refs/pull/${{ github.event.pull_request.number }}/head" >> $GITHUB_OUTPUT
     outputs:
       ref: >-
         ${{
           (github.event_name == 'pull_request' && startsWith(github.head_ref, 'release/v'))
-          && steps.ref.outputs.ref
+          && steps.pr_head_ref.outputs.ref
           || github.ref
         }}