ppsspp-dev: Add ARM64, fix checkver, autoupdate, remove extract_dir

[SandeMC]

Changed the builds server to the one currently used, removed extract_dir and added ARM64 builds.

Closes https://github.com/Calinou/scoop-games/issues/1145, https://github.com/Calinou/scoop-games/issues/794 (794 was already closed but the issue appears to still be a thing on ppsspp-dev)

• [x] I have read the Contributing Guide.

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

ppsspp-dev

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate

[SandeMC]

uhh no idea why does ci fail help

[SandeMC]

there