fixup! fixup! fixup! fixup! fixup! fixup! fixup! Build SDL3 for ReadTheDocs workflow

Author: HexDecimal

.readthedocs.yaml

@@ -20,6 +20,7 @@ build:
       - cmake -S sdl_repo -B sdl_build
       - cmake --build sdl_build --config Debug
       - cmake --install sdl_build --config Debug --prefix ~/.local
+      - sudo cp --verbose ~/.local/lib/pkgconfig/sdl3.pc /lib/pkgconfig/sdl3.pc
 
 submodules:
   include: all