style: remove unnecessary whitespace in main.py

The commit removes an extraneous whitespace character that was inadvertently added to the code. This improves code readability and maintains consistency with the project's style guidelines.

Author: sharrlotte

app/main.py

@@ -43,7 +43,7 @@ class ResponseRequest(BaseModel):
 # Remove the global session
 engine = create_engine(POSTGRES_URL)
 Session = sessionmaker(bind=engine)
-
+w
 # Why watchtower not updating?
 
 # Add dependency for session management