fix(motor test): There was a error popup about functools.partial

In frontend_tkinter_motor_test.py, the _schedule_ready_reset method was
using functools.partial to schedule a delayed callback with tkinter.after().
However, Tkinter's after() method tries to access the __name__ attribute of
the callable for internal tracking, and functools.partial objects don't
have this attribute, causing the error.

Author: amilcarlucas

ardupilot_methodic_configurator/frontend_tkinter_motor_test.py

@@ -23,7 +23,6 @@
 import time
 import tkinter as tk
 from argparse import ArgumentParser, Namespace
-from functools import partial
 from logging import debug as logging_debug
 from logging import error as logging_error
 from logging import info as logging_info
@@ -649,7 +648,7 @@ def _schedule_ready_reset(self, motor_number: int, delay_ms: int = 2000) -> None
         """Return a motor label to the Ready state after a delay."""
         self.root_window.after(
             delay_ms,
-            partial(self._update_motor_status, motor_number, _("Ready"), "blue"),
+            lambda: self._update_motor_status(motor_number, _("Ready"), "blue"),
         )
 
     def _update_motor_status(self, motor_number: int, status: str, color: str = "black") -> None: