add style check by ruff (#34)

* reformat settings

* add init tests for timed lru cache

* add check style by ruff

bot_microservice/infra/database/migrations/versions/2023-10-05-18-28_eb78565abec7.py

@@ -1,7 +1,7 @@
 """initial commit
 
 Revision ID: eb78565abec7
-Revises: 
+Revises:
 Create Date: 2023-10-05 18:28:30.915361
 
 """

bot_microservice/infra/database/migrations/versions/2023-10-05-20-44_c2e443941930.py

@@ -30,7 +30,7 @@ def upgrade() -> None:
         models = results.scalars().all()
 
         if models:
-            return None
+            return
         models = []
         for model in ChatGptModelsEnum.values():
             priority = 0 if model != "gpt-3.5-turbo-stream-FreeGpt" else 1