Merge pull request 'Fix hub logger' (#4) from fix_hub_logger into main

Reviewed-on: https://nextgenerations-cities.encs.concordia.ca/gitea/CERC/hub/pulls/4

hub/hub_logger/__init__.py

@@ -6,7 +6,7 @@ log_dir = (Path(__file__).parent.parent / 'logs').resolve()
 log_file = (log_dir / 'hub.log').resolve()
 try:
   if not os.path.isfile(log_file):
-    if not os.path.exists:
+    if not os.path.exists(log_dir):
       os.mkdir(log_dir)
     with open(log_file, 'x'):
       pass