ClaveUnica provider: set scopes acording to Implemetation guide

[AquaroTorres]

Acroding to official implementation guide of ClaveUnica, there is no email scope

Official guide: https://claveunica.gob.cl/instituciones link "Ir a guía técnica"

Direct link:

https://docs.google.com/document/d/16c0D2jVhuYOYGI9z4kC2aoNH8oWNA9v1cc3tXQ76TO0/edit