Fix PositionSensor.getMotor() (#6825)

* Fix PositionSensor.getMotor()

Was calling the wrong function to get the associated motor.

* Update changelog-r2025.md

* Add PR link

---------

Co-authored-by: CoolSpy3 <[email protected]>
Co-authored-by: Olivier Michel <[email protected]>

Author: 3 people

docs/reference/changelog-r2025.md

@@ -10,6 +10,7 @@
     - **Removed `libController.a` and `libCppController.a` libraries on Windows. Please use `Controller.lib` and `CppController.lib` instead ([#6753](https://github.com/cyberbotics/webots/pull/6753)).**
   - Bug Fixes
     - Fixed a bug preventing the `webots-controller` executable from running on arm-based mac devices ([#6806](https://github.com/cyberbotics/webots/pull/6806)).
+    - Fixed a typo in the `controller.PositionSensor` Python class: the `motor` property code was calling the wrong method ([#6825](https://github.com/cyberbotics/webots/pull/6825)).
     - Fixed a bug causing Webots to crash when multiple sounds were used with a [Speaker](speaker.md) node ([#6843](https://github.com/cyberbotics/webots/pull/6843)).
     - Fixed a bug causing the "Reload/Reset" buttons in the controller recompilation popup to not work on Windows ([#6844](https://github.com/cyberbotics/webots/pull/6844)).
     - Fixed resolution of relative paths when converting protos to their base nodes ([#6856](https://github.com/cyberbotics/webots/pull/6856)).

lib/controller/python/controller/position_sensor.py

@@ -51,7 +51,7 @@ def brake(self):
     @property
     def motor(self):
         from .motor import Motor
-        tag = wb.wb_brake_get_motor(self._tag)
+        tag = wb.wb_position_sensor_get_motor(self._tag)
         return None if tag == 0 else Motor(tag)
 
     @property