Update SDL for Windows and macOS to Hg 60b9ce4ee73e
https://github.com/cgutman/moonlight-deps/commit/ad955430988be24fd379a6152642c7ce4053bc7f
This commit is contained in:
https://github.com/cgutman/moonlight-deps/commit/ad955430988be24fd379a6152642c7ce4053bc7f