fix: fixed deprecation warning

creyPY/fastapi/models/base.py

@@ -1,5 +1,5 @@
 import uuid
-from datetime import datetime
+from datetime import datetime, timezone
 
 from sqlalchemy import Column, DateTime, String
 from sqlalchemy.dialects.postgresql import UUID
@@ -14,7 +14,11 @@ class Base:
     # Primary key as uuid
     id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
-    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    updated_at = Column(
+        DateTime(timezone=True),
+        default=lambda: datetime.now(timezone.utc),
+        onupdate=lambda: datetime.now(timezone.utc),
+    )
     created_by_id = Column(String)
 
     __name__: str