fix: cicd-approval

Author: anyangml

.github/workflows/run.yml

@@ -33,12 +33,10 @@ jobs:
         pip install .[dflow]
 
     - name: Manual Approval
-      env:
-        INPUT_APPROVERS: ${{ secrets.APPROVERS }}
       uses: trstringer/manual-approval@v1
       with:
         secret: ${{ github.token }}
-        approvers: ${{ secrets.APPROVERS }}
+        approvers: ${{ vars.APPROVERS }}
         minimum-approvals: 1
 
     - name: Run LAMBench