fix yaml syntax errors

Author: yiyuan-he

.github/workflows/release-udp-exporter.yml

@@ -53,7 +53,8 @@ jobs:
           # Wait for validation app to initialize
           sleep 5
 
-      -name: Call Sample App Endpoint
+      - name: Call Sample App Endpoint
+        run: |
           # Trigger trace generation
           echo "traceId=$(curl localhost:8080/test)" >> $GITHUB_OUTPUT
           echo $traceId