Timeout msg should switch between 'cm' and 'deg'

[hello-binit]

Given code like

sim.move_to('head_tilt', -0.5)
sim.wait_until_at_setpoint('head_tilt')

you'll sometimes see wait_until_at_setpoint times out, especially if the sim is running slowly. The warning message printed out says

Timeout: Joint head_tilt did not reach -0.5. Actual: -0.0213 Diff: -47.8702cm

The Diff: -47.8702cm doesn't make sense for head_tilt which is a rotary joint. The printout should switch between centimeters and degrees as needed. Also, let's limit to one decimal place.

stretch_mujoco/stretch_mujoco/stretch_mujoco_simulator.py

Line 285 in fd1d374

f"Timeout: Joint {actuator.name} did not reach {pos}. Actual: {actual:.4f} Diff: {error*100:.4f}cm",