K8s: Improve identity mapping setup (#89450)

pkg/services/libraryelements/accesscontrol.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 	"strings"
 
-	"github.com/grafana/grafana/pkg/infra/appcontext"
+	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	ac "github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/dashboards"
 	"github.com/grafana/grafana/pkg/services/folder"
@@ -47,7 +47,7 @@ func LibraryPanelUIDScopeResolver(l *LibraryElementService, folderSvc folder.Ser
 			return nil, err
 		}
 
-		user, err := appcontext.User(ctx)
+		user, err := identity.GetRequester(ctx)
 		if err != nil {
 			return nil, err
 		}