KDE Neon 6 not in schema

[pedro-avalos]

Bug Description

The kde-neon-6 extension is not listed in the schema, which is causing editors to complain and automated CI jobs (e.g. snapcrafters setup) to fail.

To Reproduce

n/a

Environment

n/a

snapcraft.yaml

n/a

Relevant log output

Issues while validating snapcraft.yaml: The 'apps/protonmail-bridge/extensions***' property does not match the required schema: 'kde-neon-6' is not one of ['flutter-stable', 'flutter-beta', 'flutter-dev', 'flutter-master', 'gnome', 'gnome-3-28', 'gnome-3-34', 'gnome-3-38', 'kde-neon', 'ros1-noetic', 'ros1-noetic-desktop', 'ros1-noetic-perception', 'ros1-noetic-robot', 'ros1-noetic-ros-base', 'ros1-noetic-ros-core', 'ros2-foxy', 'ros2-foxy-ros-base', 'ros2-foxy-ros-core', 'ros2-foxy-desktop', 'ros2-humble', 'ros2-humble-ros-base', 'ros2-humble-ros-core', 'ros2-humble-desktop']

Additional context

No response