The hive collector's secret-wait unit read deploy.authelia.enable to
order itself after authelia's container. That ordering is now set by
glue-hive-otel-authelia.nix, which restates the unit's own gate (otel's
`waits`). The rendered unit is unchanged.
The hive-otel module-eval fixture `hiveOtel` gains authelia, and a case
pins the edge with authelia here and its absence without.
Part of #3742.
