update firmware.yaml - gha challenge

Author: K4zuki

.github/workflows/firmware.yaml

@@ -15,7 +15,6 @@ jobs:
           git config --global --add safe.directory /__w/${repo}/${repo}
       - name: Build firmware (at a push)
         if: github.event_name == 'push'
-        uses: softprops/action-gh-release@v2
         run: |
           make docker
           make firmware