Setup SDL2 frameworks

Version updated for BrettDong/setup-sdl2-frameworks to version v2.

• This action is used across all versions by 21 repositories.

Go to the GitHub Marketplace to find the latest changes.

Release notes

Bumped Node.js runtime to 20.

https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/

• BrettDong
• GitHub Actions