chore: drop macOS support

CI is currently broken and I don't have the $$$ for macOS

.github/workflows/main.yml

@@ -14,7 +14,8 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        # os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest]
     runs-on: ${{matrix.os}}
     steps:
       - uses: goto-bus-stop/setup-zig@v2

README.md

@@ -96,7 +96,7 @@ Use `git submodule update --init` from the project root to pull the git relevant
 Be sure to provide SDL2 using:
 
 - Linux: Your distro's package manager
-- MacOS: `brew` (install [this formula](https://formulae.brew.sh/formula/sdl2))
+- macOS: ¯\\\_(ツ)_/¯ (try [this formula](https://formulae.brew.sh/formula/sdl2)?)
 - Windows: [`vcpkg`](https://github.com/Microsoft/vcpkg) (install `sdl2:x64-windows`)
 
 `SDL.zig` will provide a helpful compile error if the zig compiler is unable to find SDL2.