games/anki: Update to 2.1.65

• Drop a unneccessary call in the custom "make-yarn-cache" target.

Changelogs since 2.1.62:

https://github.com/ankitects/anki/releases/tag/2.1.65
https://github.com/ankitects/anki/releases/tag/2.1.64
https://github.com/ankitects/anki/releases/tag/2.1.63