tests: skip data migrations on django 2.2

tests/test_data_migrations.py

@@ -2,6 +2,7 @@ import uuid
 
 import pytest
 
+import django
 from django.db import connection
 from django.db.migrations.executor import MigrationExecutor
 
@@ -9,6 +10,8 @@ pytestmark = pytest.mark.django_db
 
 
 def test_subscription_sms_identifier_format_migration():
+    if django.VERSION >= (2, 0, 0):
+        pytest.skip('NotSupportedError')
     executor = MigrationExecutor(connection)
     app = 'corbo'
     migrate_from = [(app, '0009_auto_20170120_1533')]