Scrubbing unsubscribe_token on user deactivation .
Also added rake task to scrub unsubscribe_token for already deactivated users
Review checklist
[ ] First, the most important one: is this PR small enough that you can actually review it? Feel free to just reject a branch if the changes are hard to review due to the length of the diff.
[ ] If there are any migrations, will they the previous version of the app work correctly after they've been run (e.g. the don't remove columns still known about by ActiveRecord).
[ ] If anything changed with regards to the public API, are those changes also documented in the apiary.apib file?
[ ] Are all the changes covered by tests? Think about any possible edge cases that might be left untested.
Follow up on conversation on Slack thread found here: https://zooniverse.slack.com/archives/C06DCM0V9/p1713893304800329
Scrubbing unsubscribe_token on user deactivation .
Review checklist
apiary.apibfile?