Pause automation when Kalman Filter uncertainty gets too high

[pascalzauberzeug]

Motivation & Implementation

Before, the AutomationWatcher was observing the quality of the GNSS signal and paused when it was insufficient or the last measurement was too old.
When using a Kalman Filter, this is not the best approach, because it will stop everytime the signal is lost, while the Kalman Filter can work properly for a few meters without GNSS.

With this PR, the AutomationWatcher will pause when the xy-uncertainty becomes bigger than 1cm.
I chose this value while testing, but we can adjust it later when we gathered more experience with it.

Progress

• I chose a meaningful title that completes the sentence: "If applied, this PR will..."
• I chose meaningful labels (if GitHub allows me to so).
• The implementation is complete.
• Tests with a real hardware have been successful (or are not necessary).
• Pytests have been added (or are not necessary).
• Documentation has been added (or is not necessary).