Provisioning: add webhook support in API Server and Operator (#110673)

* 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

---------

Co-authored-by: Roberto Jimenez Sanchez <roberto.jimenez@grafana.com>

pkg/registry/apis/provisioning/webhooks/pullrequest/render.go

@@ -106,3 +106,19 @@ func (r *screenshotRenderer) RenderScreenshot(ctx context.Context, repo provisio
 	return fmt.Sprintf("apis/%s/namespaces/%s/repositories/%s/render/%s",
 		provisioning.APIVERSION, repo.Namespace, repo.Name, rsp.Uid), nil
 }
+
+type NoOpRenderer struct{}
+
+func NewNoOpRenderer() ScreenshotRenderer {
+	return &NoOpRenderer{}
+}
+
+func (r *NoOpRenderer) IsAvailable(_ context.Context) bool {
+	return false
+}
+
+func (r *NoOpRenderer) RenderScreenshot(
+	_ context.Context, _ provisioning.ResourceRepositoryInfo, _ string, _ url.Values,
+) (string, error) {
+	return "", nil
+}