Fix timidity license

[sezero]

Copied over the same commit from SDL_sound.

Fixes #898

[sezero]

@madebr: What's with the irrelevant ci mac failure?

[madebr]

@madebr: What's with the irrelevant ci mac failure?

Typo in SDL, it appears.

  /var/folders/36/tjdph2t965j8snz9_vkdnw0r0000gn/T/setupsdl/a9cac44cc535e3270326424f2aa98e8ec3d5b1146c528120fe6b8c147c0d88bb/source/src/gpu/metal/SDL_gpu_metal.m:3842:29: error: no member named 'hanlde' in 'struct MetalTexture'
   3842 |         windowData->texture.hanlde = nil;
        |         ~~~~~~~~~~~~~~~~~~~ ^
  1 error generated.

See libsdl-org/SDL#16345 / libsdl-org/SDL@6772e3f

[madebr]

@sezero macOS is green again 🍏

[sezero]

OK, I'm merging this and cherry-picking everywhere.