fix: remove unused imports flagged by CodeQL

lib/crewai/tests/test_conversation_memory.py

@@ -8,9 +8,8 @@ task description and final result.
 from __future__ import annotations
 
 from typing import Any
-from unittest.mock import MagicMock, patch
+from unittest.mock import MagicMock
 
-import pytest
 
 from crewai.agents.parser import AgentFinish
 

lib/crewai/tests/test_flow_as_tool.py

@@ -2,11 +2,7 @@
 
 from __future__ import annotations
 
-from typing import Any
-from unittest.mock import MagicMock, patch
-
-import pytest
-from pydantic import BaseModel
+from unittest.mock import MagicMock
 
 from crewai.flow.flow import Flow, start
 from crewai.tools.flow_tool import FlowTool, create_flow_tools