[Misc] Lint code and fix code smells (#1871)

mem0/memory/storage.py

@@ -12,9 +12,7 @@ class SQLiteManager:
         with self.connection:
             cursor = self.connection.cursor()
 
-            cursor.execute(
-                "SELECT name FROM sqlite_master WHERE type='table' AND name='history'"
-            )
+            cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='history'")
             table_exists = cursor.fetchone() is not None
 
             if table_exists:
@@ -62,7 +60,7 @@ class SQLiteManager:
                         INSERT INTO history (id, memory_id, old_memory, new_memory, new_value, event, created_at, updated_at, is_deleted)
                         SELECT id, memory_id, prev_value, new_value, new_value, event, timestamp, timestamp, is_deleted
                         FROM old_history
-                    """
+                    """  # noqa: E501
                     )
 
                     cursor.execute("DROP TABLE old_history")