Removed extra double double quote

upgrade.sh

@@ -28,7 +28,7 @@ update_config() {
     sed -i "/^KOFI_TOKEN/d" instance/config.py  # Delete KOFI_TOKEN line from config.py
     sed -i "/^KOFI_INTEGRATION/d" instance/config.py  # Delete KOFI_INTEGRATION line from config.py
 
-    sed -i "s/}/,\"gb_name\"": \"\"}/" instance/alerts.py  # Append those values to kofi.py
+    sed -i "s/}/,\"gb_name\": \"\"}/" instance/alerts.py  # Append those values to kofi.py
     
     cp ownchatbot/defaults/givebutter.py instance/  # Copy the default givebutter config file into instance/
 }