Apparition4 isn't really maintained anymore and there are no new releases
and it always logs a lot of errors, making the output hard to read.
So lets switch to cuprite, as it also supports everything we need and is
still maintained.
Supersedes #8330
The route /api/v0/user/ will now be used as a
non-OIDC route. In other words, the /api/v0/user/
will require the "read" scope while
/api/openid_connect/user_info/ will require the
"openid" scope
