Fix share instance show related tests..

Share instance show query need additional key 'updated_at'.

Related-Bug: #1965122
Depends-On: Ia69f3615d82e0044e3e9f81556dc8355637ef146
Change-Id: I1dbeee78c864067b8618b76a2929a112bef148e1
diff --git a/manila_tempest_tests/config.py b/manila_tempest_tests/config.py
index 1758064..b62c409 100644
--- a/manila_tempest_tests/config.py
+++ b/manila_tempest_tests/config.py
@@ -40,7 +40,7 @@
                     "This value is only used to validate the versions "
                     "response from Manila."),
     cfg.StrOpt("max_api_microversion",
-               default="2.70",
+               default="2.71",
                help="The maximum api microversion is configured to be the "
                     "value of the latest microversion supported by Manila."),
     cfg.StrOpt("region",
diff --git a/manila_tempest_tests/tests/api/admin/test_share_instances.py b/manila_tempest_tests/tests/api/admin/test_share_instances.py
index 38c3f49..4f2e454 100644
--- a/manila_tempest_tests/tests/api/admin/test_share_instances.py
+++ b/manila_tempest_tests/tests/api/admin/test_share_instances.py
@@ -95,6 +95,8 @@
             expected_keys.append("cast_rules_to_readonly")
         if utils.is_microversion_ge(version, '2.54'):
             expected_keys.append("progress")
+        if utils.is_microversion_ge(version, '2.71'):
+            expected_keys.append("updated_at")
         expected_keys = sorted(expected_keys)
         actual_keys = sorted(si.keys())
         self.assertEqual(expected_keys, actual_keys,