Invalid release URL

[frafra]

docker-flutter/stable/Dockerfile

Line 14 in 3cd6be2

ENV FLUTTER_URL="https://storage.googleapis.com/flutter_infra/releases/$FLUTTER_CHANNEL/linux/flutter_linux_$FLUTTER_VERSION-$FLUTTER_CHANNEL.tar.xz"

It looks like there is a missing _ release in the URL

https://storage.googleapis.com/flutter_infra/releases/stable/linux/flutter_linux_2.10.5-stable.tar.xz
should be
https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_2.10.5-stable.tar.xz