braces to parentheses

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: Judahmeek

.github/workflows/deploy-to-control-plane-review-app.yml

@@ -355,8 +355,7 @@ jobs:
 
       - name: Retrieve App URL
         id: workload
-        run: echo "WORKLOAD_URL=${cpln workload get rails --gvc ${{ env.APP_NAME }} | tee | grep -oP 'https://[^[:space:]]*\.cpln\.app(?=\s|$)' | head -n1}"  >> "$GITHUB_OUTPUT"
-
+        run: echo "WORKLOAD_URL=$(cpln workload get rails --gvc ${{ env.APP_NAME }} | tee | grep -oP 'https://[^[:space:]]*\.cpln\.app(?=\s|$)' | head -n1)"  >> "$GITHUB_OUTPUT"
       - name: Update Status - Deployment Complete
         if: env.DO_DEPLOY != 'false'
         uses: actions/github-script@v7