[v10.2.x] Feature toggle: Mark dashgpt as GA (#76989)

Feature toggle: Mark dashgpt as GA (#76304)

Co-authored-by: nmarrs <nathanielmarrs@gmail.com>
(cherry picked from commit a03f9e7660)

Co-authored-by: Ivan Ortega Alba <ivanortegaalba@gmail.com>

pkg/services/featuremgmt/registry.go

@@ -707,9 +707,10 @@ var (
 		{
 			Name:         "dashgpt",
 			Description:  "Enable AI powered features in dashboards",
-			Stage:        FeatureStageExperimental,
+			Stage:        FeatureStageGeneralAvailability,
 			FrontendOnly: true,
 			Owner:        grafanaDashboardsSquad,
+			Expression:   "true", // on by default
 		},
 		{
 			Name:            "reportingRetries",

pkg/services/featuremgmt/toggles_gen.csv

@@ -100,7 +100,7 @@ configurableSchedulerTick,experimental,@grafana/alerting-squad,false,false,true,
 influxdbSqlSupport,experimental,@grafana/observability-metrics,false,false,false,false
 alertingNoDataErrorExecution,privatePreview,@grafana/alerting-squad,false,false,true,false
 angularDeprecationUI,experimental,@grafana/plugins-platform-backend,false,false,false,true
-dashgpt,experimental,@grafana/dashboards-squad,false,false,false,true
+dashgpt,GA,@grafana/dashboards-squad,false,false,false,true
 reportingRetries,preview,@grafana/sharing-squad,false,false,true,false
 newBrowseDashboards,GA,@grafana/grafana-frontend-platform,false,false,false,true
 sseGroupByDatasource,experimental,@grafana/observability-metrics,false,false,false,false