The collector's client is registered for authelia.bearer.authz, but the
prometheus scrape asked for no scopes, so every token came back carrying
none and authelia refused it at introspection with 'the requested scope
is invalid, unknown, or malformed'. Forgejo metrics were never scraped.
The rule was already stated one field below, for the audience: registered
is not requested. The two travel together, and a config read cannot see
the one that is missing -- every inspection of the rendered config came
back correct, because what was present was correct.