one day I'll learn how to spell hierarchy

Expand OIDC to OpenID Connect.

When a user deletes an email from their account it will
now also remove all pushers for that email and that user
(even if these pushers were created by a different client)

Ubuntu 20.10 was not an LTS release

Signed-off-by: John-Scott Atlakson <24574+jsma@users.noreply.github.com>