Check if there is new version of the tool by default

centos2almaconverter/upgrader.py

@@ -43,6 +43,7 @@ def __init__(self):
         self.amavis_upgrade_allowed = False
         self.allow_raid_devices = False
         self.remove_leapp_logs = False
+        self.allow_old_script_version = False
 
     def __repr__(self) -> str:
         return f"{self.__class__.__name__}(From {self._distro_from}, To {self._distro_to})"