fix: use typing_extensions.TypedDict for Python < 3.12 compatibility

lib/crewai/src/crewai/utilities/types.py

@@ -1,9 +1,9 @@
 """Types for CrewAI utilities."""
 
-from typing import Any, Literal, TypedDict
+from typing import Any, Literal
 
 from crewai_files import FileInput
-from typing_extensions import NotRequired
+from typing_extensions import NotRequired, TypedDict
 
 
 class LLMMessage(TypedDict):
@@ -28,4 +28,4 @@ class KickoffInputs(TypedDict, total=False):
         files: Named file inputs accessible to tasks during execution.
     """
 
-    files: dict[str, FileInput]
+    files: dict[str, FileInput]