Skip test_gateway_mtu_neutron_net_id_with_neutron

This test works with datas that Manila provides
till 2.50 API microversion and they are absent in
the latest API versions

Related-Prod: PRODX-30864
Change-Id: I697ee4faa9ae2b193c9d27e2471e25a2c97a54cc
diff --git a/manila_tempest_tests/tests/api/test_share_networks.py b/manila_tempest_tests/tests/api/test_share_networks.py
index f990566..6e798ee 100644
--- a/manila_tempest_tests/tests/api/test_share_networks.py
+++ b/manila_tempest_tests/tests/api/test_share_networks.py
@@ -22,6 +22,7 @@
 from manila_tempest_tests import utils
 
 CONF = config.CONF
+LATEST_MICROVERSION = CONF.share.max_api_microversion
 
 
 class ShareNetworkListMixin(object):
@@ -299,6 +300,12 @@
         self.assertDictContainsSubset(data, sn2)
 
     @decorators.idempotent_id('2dbf91da-04ae-4f9f-a7b9-0299c6b2e02c')
+    # In this test Share client use the latest API microversion
+    # for connection to the Manila service.
+    # This test may not work after microversion 2.50
+    # https://docs.openstack.org/api-ref/shared-file-system/?expanded=list-share-networks-with-details-detail
+    @utils.skip_if_is_microversion_ge(LATEST_MICROVERSION,
+                                      utils.SHARE_NETWORK_SUBNETS_MICROVERSION)
     @testtools.skipUnless(CONF.share.create_networks_when_multitenancy_enabled,
                           "Only for setups with network creation.")
     @testtools.skipUnless(CONF.share.multitenancy_enabled,