Fix CI: update SDL ver for vulkan

.github/workflows/build.yml

@@ -114,7 +114,7 @@ jobs:
             ;;
 
           windows*)
-            curl -fsSL --retry 3 --retry-delay 5 -o /tmp/sdl.zip https://www.libsdl.org/release/SDL2-devel-2.0.5-VC.zip
+            curl -fsSL --retry 3 --retry-delay 5 -o /tmp/sdl.zip https://www.libsdl.org/release/SDL2-devel-2.30.2-VC.zip
             curl -fsSL --retry 3 --retry-delay 5 -o /tmp/openal.zip https://github.com/kcat/openal-soft/releases/download/1.23.1/openal-soft-1.23.1-bin.zip
             curl -fsSL --retry 3 --retry-delay 5 -o /tmp/ffmpeg.zip ${{ matrix.ffmpeg_url }}
             7z x /tmp/sdl.zip    -oinclude; mv include/SDL2*   include/sdl