add sdl headers

.github/workflows/build.yml

@@ -16,6 +16,9 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
+      - name: Install sdl2 headers
+        run: |
+          sudo apt -y install libsdl2-dev
       - name: Update rust
         run: |
           rustup update