feat(workflow): add tmate session for debugging

Added mxschmitt/action-tmate@v3 to the workflow steps to enable tmate sessions for debugging purposes. The session access is limited to the actor for security reasons.

.github/workflows/vorpal.yaml

@@ -99,6 +99,10 @@ jobs:
           - macos-latest
           - ubuntu-latest
     steps:
+      - uses: mxschmitt/action-tmate@v3
+        with:
+          limit-access-to-actor: true
+
       - uses: actions/checkout@v4
 
       - if: matrix.runner == 'ubuntu-latest'