Update data_models: fix warning

pqai_agent/data_models/agent_configuration.py

@@ -1,7 +1,7 @@
 from enum import Enum
 
 from sqlalchemy import Column, Integer, Text, BigInteger, String, SmallInteger, Boolean, TIMESTAMP
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 
 Base = declarative_base()
 

pqai_agent/data_models/agent_push_record.py

@@ -1,5 +1,5 @@
 from sqlalchemy import Column, Integer, Text, BigInteger
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 
 from pqai_agent import configs
 

pqai_agent/data_models/service_module.py

@@ -1,7 +1,7 @@
 from enum import Enum
 
 from sqlalchemy import Column, Integer, Text, BigInteger, String, SmallInteger, Boolean, TIMESTAMP
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 
 Base = declarative_base()