Enable most of pycodestyle through ruff

• enable flake8 compat
• enable 99% of pycodestyle ... except line too long

It found and fixed one interesting issue.

arkindex/users/utils.py

@@ -34,7 +34,7 @@ def get_public_instances(model):
 
 
 def check_level_param(level):
-    assert type(level) is int, "An integer level is required to compare access rights."
+    assert isinstance(level, int), "An integer level is required to compare access rights."
     assert level >= 1, "Level integer should be greater than or equal to 1."
     assert level <= 100, "level integer should be lower than or equal to 100"