IGNITE-27472 Fix flaky MetricsConfigurationTest (#12616)

Author: alex-plekhanov

modules/core/src/test/java/org/apache/ignite/internal/metric/MetricsConfigurationTest.java

@@ -472,8 +472,8 @@ public void checkOnStartAndRestart(IgniteBiInClosureX<IgniteEx, IgniteEx> afterS
 
             afterStart.apply(g0, g1);
 
-            g0.close();
-            g1.close();
+            stopGrid("persistent-0", false);
+            stopGrid("persistent-1", false);
 
             g0 = startGrid("persistent-0");
             g1 = startGrid("persistent-1");