gha - add tmate debugging

Author: cderv

.github/workflows/actions/quarto-dev/action.yml

@@ -31,6 +31,12 @@ runs:
       if: runner.os == 'Windows'
       run: $env:PATH -Split ";"
 
+    - name: Setup tmate session
+      uses: mxschmitt/action-tmate@v3
+      with:
+      limit-access-to-actor: true
+      timeout-minutes: 30
+
     - name: Basic dev mode sanity check
       shell: pwsh
       run: |