Tidy up example build jank

[paulstraw]

Is your feature request related to a problem? Please describe.
I set up some janky build stuff to work around samdze/playdate-nim#28. It should be removed once there's a new release with those changes.

Describe the solution you'd like
Update the playdate dep version and remove the manual workaround jank.

Describe alternatives you've considered
N/A

Additional context
N/A