Provisioner key permissions were never any different than provisioners.
Merging them for a cleaner permission story until they are required (if
ever) to be seperate.
This removed `ResourceProvisionerKey` from RBAC and just uses the
existing `ResourceProvisioner`.
As requested for [this
issue](https://github.com/coder/internal/issues/245) we need to have a
new resource `resources_monitoring` in the agent.
It needs to be parsed from the provisioner and inserted into a new db
table.
Closes https://github.com/coder/coder/issues/15213
This PR enables sending notifications without requiring the auth system
context, instead using a new auth notifier context.
Vincent Vielle