Update supertuxkart to 1.0

Summary:
Update supertuxkart to the latest stable release 1.0.

Depends on D6189.

Changelog:

• Online multiplayer

Full release blog can be found here.

Test Plan:
Installed, launched and played some supertuxkart with everything working as
expected.

Reviewers: Triage Team, JoshStrobl

Reviewed By: Triage Team, JoshStrobl

Subscribers: JoshStrobl

Differential Revision: https://dev.getsol.us/D6080