Add note to user when blocking with script

Description

When we block users with this script, we should add a note to the user so that the script knows whether the user has been blocked by the script or by something else. This is important for when we want to unblock users, so that we only unblock users with this script that were previously blocked with this script.

Further details

Note should contain the date when we blocked the user through the script.

Task list

Acceptance criteria

• when blocking a user a note has been added to the user's profile
• note should contain date we blocked the user through the script
• only unblock users that are having this note set

Links/references