try

Author: ooooo-create

.github/workflows/preview-url-report.yml

@@ -27,7 +27,11 @@ jobs:
         id: generate-comment
         run: |
           chmod +x ci_scripts/report_preview_url.sh
-          echo "comment_body=$(./ci_scripts/report_preview_url.sh ${{ github.event.pull_request.number }})" >> $GITHUB_OUTPUT
+          {
+            echo 'comment_body<<EOF'
+            ./ci_scripts/report_preview_url.sh ${{ github.event.pull_request.number }}
+            echo EOF
+          } >> $GITHUB_OUTPUT
 
       - name: Post or Update Comment
         uses: peter-evans/find-comment@v4