Update FFmpeg to 7.1.1 on Windows (#156)

This commit updates FFmpeg to version 7.1.1 on Windows.

Co-authored-by: MaranBr <maranbr@outlook.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/156
Co-authored-by: MaranBr <maranbr@noreply.localhost>
Co-committed-by: MaranBr <maranbr@noreply.localhost>

externals/ffmpeg/CMakeLists.txt

@@ -255,7 +255,7 @@ elseif(ANDROID)
     set(FFmpeg_INCLUDE_DIR "${FFmpeg_INCLUDE_DIR}" PARENT_SCOPE)
 elseif(WIN32)
     # Use yuzu FFmpeg binaries
-    set(FFmpeg_EXT_NAME "ffmpeg-6.0.2")
+    set(FFmpeg_EXT_NAME "ffmpeg-7.1.1")
     set(FFmpeg_PATH "${CMAKE_BINARY_DIR}/externals/${FFmpeg_EXT_NAME}")
     download_bundled_external("ffmpeg/" ${FFmpeg_EXT_NAME} "")
     set(FFmpeg_FOUND YES)