[AppImage] Bundle libstdc++ (#1038)

Author: qurious-pixel

dist/linux/appimage.sh

@@ -46,6 +46,7 @@ fi
 echo "Cemu Version Cemu-${GITVERSION}"
 
 rm AppDir/usr/lib/libwayland-client.so.0
+cp /lib/x86_64-linux-gnu/libstdc++.so.6 AppDir/usr/lib/
 echo -e "export LC_ALL=C\nexport FONTCONFIG_PATH=/etc/fonts" >> AppDir/apprun-hooks/linuxdeploy-plugin-gtk.sh
 VERSION="${GITVERSION}" ./mkappimage.AppImage --appimage-extract-and-run "${GITHUB_WORKSPACE}"/AppDir