Mavsdk: Follow Me example behaviour has changed in latest firmware

[hamishwillee]

Previously flew spirals as shown here: https://sdk.dronecode.org/en/examples/follow_me.html

Now it flies a straight line somewhat south, while spinning a bit:

I tried this for gazebo and jmavsim using current firmware and DroneCore, on a real machine and in VM.

[julianoes]

Fun fun fun. Thanks for testing and reporting @hamishwillee.

[hamishwillee]

@julianoes We have a different idea of fun 👎 :-)