still fix loglevel to upper

Author: tillsteinbach

src/carconnectivity/carconnectivity.py

@@ -131,6 +131,7 @@ def __init__(self, config: Dict, tokenstore_file: Optional[str] = None, cache_fi
         # Configure logging
         if 'log_level' in config['carConnectivity'] and config['carConnectivity']['log_level'] is not None:
             self.active_config['log_level'] = config['carConnectivity']['log_level'].upper()
+            config['carConnectivity']['log_level'] = config['carConnectivity']['log_level'].upper()
             if self.active_config['log_level'] in logging._nameToLevel:
                 LOG.setLevel(self.active_config['log_level'])
             else: