fix: address type-checker and lint issues

- Add proper type hints in Crew.test()
- Fix import sorting in test file

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

tests/utilities/evaluators/test_custom_llm_support.py

@@ -1,6 +1,7 @@
-import pytest
 from unittest.mock import MagicMock
 
+import pytest
+
 from crewai.agent import Agent
 from crewai.crew import Crew
 from crewai.llm import LLM