core: improve TestConfigNativeUpdateHistory subtests naming

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>

pkg/core/blockchain_neotest_test.go

@@ -1149,7 +1149,9 @@ func TestConfigNativeUpdateHistory(t *testing.T) {
 		"unit_testnet.single",
 	}
 	for _, tc := range testCases {
+		t.Run(fmt.Sprintf("%s", tc), func(t *testing.T) {
 			check(t, tc)
+		})
 	}
 }