Update boilerplate

[xmclark]

When doing the pong tutorial, I used the boilerplate. Certain Game.js imports like KeyboardControls were missing on this version, and seemed to be fixed when I upgraded to 4.0.9. This should be updated so it works smoothly with the main tutorial.

tinygames/boilerplate/package.json

Line 13 in e613b19

"lance-gg": "^4.0.3",