Parse just the version tag

Author: Moetto

.github/workflows/gh-publish.yaml

@@ -68,7 +68,11 @@ jobs:
       - name: Extract main sha tag
         id: main_sha
         run: |
-          echo "tag=$(echo '${{ steps.meta.outputs.tags }}' | grep '^.*:new-pipeline-')" >> $GITHUB_OUTPUT
+          # Find the line with `:main-...`
+          full_line="$(echo '${{ steps.meta.outputs.tags }}' | grep ':new-pipeline-')"
+          # Strip everything before the last :
+          tag="${full_line##*:}"
+          echo "tag=$tag" >> $GITHUB_OUTPUT
       - uses: azure/setup-helm@v3.5
       - run: |
            helm upgrade --install -n cms cms deployment/ -f deployment/prod-values.yaml --set image.tag=${{ steps.main_sha.outputs.tag }}