fix: resolve circular import in CLI authentication module

- Move ToolCommand import to be local inside _poll_for_token method
- Update test mock to patch ToolCommand at correct location
- Resolves Python 3.11 test collection failure in CI

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

tests/cli/authentication/test_auth_main.py

@@ -44,7 +44,7 @@ class TestAuthenticationCommand(unittest.TestCase):
         mock_print.assert_any_call("2. Enter the following code: ", "ABCDEF")
         mock_open.assert_called_once_with("https://example.com")
 
-    @patch("crewai.cli.authentication.main.ToolCommand")
+    @patch("crewai.cli.tools.main.ToolCommand")
     @patch("crewai.cli.authentication.main.requests.post")
     @patch("crewai.cli.authentication.main.validate_token")
     @patch("crewai.cli.authentication.main.console.print")