update workflow call

Author: lizk886

.github/workflows/publish-all-operators.yaml

@@ -72,6 +72,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          ref: ${{ inputs.release_branch || 'main' }}
 
       - name: Scan vulnerabilities
         uses: IABTechLab/uid2-shared-actions/actions/vulnerability_scan@v3