[Feature] Relax speed cap for external Boost motor

[laurensvalk]

(...) the speed cap on the external Boost motor is a bit too strict.

Originally posted by @laurensvalk in https://github.com/pybricks/support/discussions/1620#discussioncomment-9264013

---

This was brought to our attention by @andybellgbc. Thank you!

[laurensvalk]

That motor is capped by default at 1000 deg/s (166 rpm) but I think @andybellgbc's suggestion for 1200 deg/s (200 rpm) makes sense.

[laurensvalk]

If you are feeling up to it, feel free to change 1000 to 1200 here by editing/forking via this link. (Can all be done in the browser, no external tools required). Otherwise no worries, and we'll get this done eventually :)

[andybellgbc]

I am a patient man... and a novice coder. I was able to run the Boost motor with no issues at a higher rate this lunchtime. So I probably won't be forking the project, but will make use of the functions.