Fix: Apply Ruff auto-fix for import formatting

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/test_hierarchical_delegation.py

@@ -1,9 +1,11 @@
-import pytest
 from unittest.mock import MagicMock
 
-from crewai import Agent, Crew, Process, Task
+import pytest
 from langchain_core.language_models.base import BaseLanguageModel
 
+from crewai import Agent, Crew, Process, Task
+
+
 def test_hierarchical_delegation_tool_availability():
     """Test that all agents are available for delegation in hierarchical mode."""
     # Mock LLM to avoid actual API calls