fixup! Add managed agent rollback integration test

Author: pchila

testing/integration/ess/upgrade_rollback_test.go

@@ -280,7 +280,7 @@ func TestStandaloneUpgradeRollbackOnRestarts(t *testing.T) {
 // rolled back to the previous version and that Fleet reports the correct informations
 func TestFleetManagedUpgradeRollbackOnRestarts(t *testing.T) {
 	info := define.Require(t, define.Requirements{
-		Group: Fleet,
+		Group: integration.Fleet,
 		Local: false, // requires Agent installation
 		Sudo:  true,  // requires Agent installation
 		Stack: &define.Stack{},