add diff function

.gitea/workflows/kibot.yml

@@ -205,6 +205,13 @@ jobs:
         name: JLCPCB-${{ steps.layers.outputs.layers }}layer
         path: Generated/*_JLCPCB_compress.zip
 
+    - name: Retrieve results - Diff Report
+      if: steps.generate_diff.outputs.has_diff == 'true'
+      uses: actions/upload-artifact@v3
+      with:
+        name: Schematic-PCB-Diff
+        path: Generated/DIFF
+
   # Deploy to documentation branch
   deploy:
     runs-on: kicad-kibot-runner