Fix syntax error

Signed-off-by: falkTX <falktx@falktx.com>

.github/workflows/build.yml

@@ -309,4 +309,4 @@ jobs:
     - uses: actions/upload-artifact@v2
       with:
         name: jack2-ubuntu-20.04-${{ github.event.pull_request.number || steps.slug.outputs.sha8 }}
-        path: *.deb
+        path: ./*.deb