Update c-cpp.yml

Try nr3

.github/workflows/c-cpp.yml

@@ -20,6 +20,11 @@ jobs:
         uses: jurplel/install-qt-action@v3.3.0
         with:
           version: '6.2.0'
+          
+      - name: Install SDL2
+        uses: libsdl-org/setup-sdl@v1
+      - name: Install FFmpeg  
+        uses: AnimMouse/setup-ffmpeg@v1
 
       - name: Configure project
         run: |