* Provisioning: add webhook support in API Server
* updating Extra interface
* adding extra with workers interface
* reverting extraWithWorkers in RegisterAPIService
* adding extra job worker provider
* adding new extra job provider
* Wire things differently
* Remove unused GetJobs
* Pass url variable as string
* Support webhooks in controller
* Fix condition
* Change the naming
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Co-authored-by: Roberto Jimenez Sanchez <roberto.jimenez@grafana.com>