Update c-cpp.yml

please just work

.github/workflows/c-cpp.yml

@@ -23,8 +23,13 @@ jobs:
           
       - name: Install SDL2
         uses: libsdl-org/setup-sdl@v1
+        
+      - name: Install SDL image and mixer libraries
+        run: sudo apt-get install -y libsdl2-image-dev libsdl2-mixer-dev
+
       - name: Install FFmpeg  
         uses: AnimMouse/setup-ffmpeg@v1
+        
       - name: Install FFmpeg dependencies
         run: |
           sudo apt-get install -y libavdevice-dev libavfilter-dev libavformat-dev libavcodec-dev libswresample-dev libswscale-dev libavutil-dev