check that pants runs

Author: n-g

.github/workflows/pants.yaml

@@ -41,6 +41,7 @@ jobs:
       run: |
         curl --proto '=https' --tlsv1.2 -fsSL https://static.pantsbuild.org/setup/get-pants.sh | bash
         which -a pants
+        pants --version --print-stacktrace -ldebug
 
     - name: Check BUILD files
       run: |