Revert "Update werkzeug from 2.1.2 to 2.2.2"
Revert "Update werkzeug from 2.1.2 to 2.2.2"

This reverts commit 8192322311d4754070ed2a016889c81374cb6b47.

alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin