chore(forge): gather files to be signed for analysis

.github/workflows/nightly.yml

@@ -87,6 +87,13 @@ jobs:
           tag_name: nightly
           name: Nightly Build
 
+      - name: Publish artifacts
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: signing ${{ matrix.os.name }} ${{ matrix.arch }}
+          path: apps/desktop/electron-forge/sign
+
       - name: Publish artifacts
         uses: actions/upload-artifact@v4
         if: ${{ github.event_name == 'pull_request' }}