Remove unused Integer import from sqlalchemy

The unused `Integer` import was removed to clean up the code and ensure a more maintainable import structure. This change has no impact on functionality but improves code readability.

Author: VladimirFilonov

keep/api/models/db/topology.py

@@ -3,7 +3,7 @@
 from uuid import UUID, uuid4
 
 from pydantic import BaseModel
-from sqlalchemy import DateTime, ForeignKey, Integer, PrimaryKeyConstraint, ForeignKeyConstraint
+from sqlalchemy import DateTime, ForeignKey, PrimaryKeyConstraint, ForeignKeyConstraint
 from sqlmodel import JSON, Column, Field, Relationship, SQLModel, func