Add newline at the end of copilot-test-tools.yml

Author: austenstone

.github/workflows/copilot-test-tools.yml

@@ -33,4 +33,5 @@ jobs:
           PROMPT: |
             list all your tools.
       - run: cat ~/.copilot/mcp-config.json
-      - uses: mxschmitt/action-tmate@v3
+      - uses: mxschmitt/action-tmate@v3
+