update stale message

.github/workflows/stale.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/stale@v9
         with:
-          stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.'
+          stale-issue-message: 'This issue has been marked as stale because it has been open for 30 days with no activity. This thread will be automatically closed in 5 days if no further activity occurs.'
           exempt-issue-labels: 'bug,exporters,good first issue,onnx,onnxruntime,quantization'
           days-before-stale: 30
           days-before-close: 5