CloudMigrations: Report on prem event with grafana version (#104515)

* grafana version in on prem event report

* store grafana version in cloud migration service

pkg/services/cloudmigration/cloudmigrationimpl/cloudmigration.go

@@ -81,6 +81,8 @@ type Service struct {
 	api     *api.CloudMigrationAPI
 	tracer  tracing.Tracer
 	metrics *Metrics
+
+	grafanaVersion string
 }
 
 var LogPrefix = "cloudmigration.service"
@@ -191,6 +193,8 @@ func ProvideService(
 		}
 	}
 
+	s.grafanaVersion = cfg.BuildVersion
+
 	return s, nil
 }
 
@@ -856,9 +860,10 @@ func (s *Service) report(
 	}
 
 	e := gmsclient.EventRequestDTO{
-		Event:   t,
-		LocalID: id,
-		UserUID: userUID,
+		Event:          t,
+		LocalID:        id,
+		UserUID:        userUID,
+		GrafanaVersion: s.grafanaVersion,
 	}
 
 	if d != 0 {