try comments (galaxyproject#5707)

.github/workflows/pr.yaml

@@ -362,6 +362,7 @@ jobs:
       with:
         mode: combine
         html-report: true
+        markdown-report: true
     - uses: actions/upload-artifact@v3
       with:
         name: 'All tool test results'
@@ -377,6 +378,24 @@ jobs:
         if [[ "${{ needs.setup.outputs.chunk-count }}" != "$NFILES" ]]; then
           exit 1
         fi
+    - name: Get PR object
+      if: failure()
+      uses: 8BitJonny/[email protected]
+      id: failed_pr_number
+      with:
+        sha: ${{ github.event.pull_request.head.sha }}
+    - name: Debug GetPR output
+      if: failure()
+      run: |
+          echo ${{ steps.failed_pr_number.outputs.number }}
+    - name: Post comment with test report
+      if: failure()
+      uses: peter-evans/create-or-update-comment@v3
+      with:
+        token: ${{ secrets.PAT }}
+        issue-number: ${{ steps.failed_pr_number.outputs.number }}
+        body-path: upload/tool_test_output.md
+
 
   # deploy the tools to the toolsheds (first TTS for testing)
   deploy: