BE: linting fixes

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

server/models/user_events_queue_instance.py

@@ -100,7 +100,7 @@ class UserEventsQueueInstance:
         if not action or not isinstance(action, str):
             msg = "[UserEventsQueueInstance] Invalid or missing action"
             mylog('none', [msg])
-            
+
             return False, msg
 
         try:
@@ -109,15 +109,11 @@ class UserEventsQueueInstance:
 
             msg = f'[UserEventsQueueInstance] Action "{action}" added to the execution queue.'
             mylog('minimal', [msg])
-            
+
             return True, msg
 
         except Exception as e:
             msg = f"[UserEventsQueueInstance] ERROR Failed to write to {self.log_file}: {e}"
             mylog('none', [msg])
-            
+
             return False, msg
-    
-
-
-