fix: load entities for tests

server/vbv_lernwelt/api/tests/test_me_api.py

@@ -2,7 +2,9 @@ from django.urls import reverse
 from rest_framework import status
 from rest_framework.test import APITestCase
 
+from vbv_lernwelt.core.model_utils import add_organisations
 from vbv_lernwelt.core.models import User
+from vbv_lernwelt.shop.model_utils import add_countries
 
 
 class MeUserViewTest(APITestCase):
@@ -11,6 +13,8 @@ class MeUserViewTest(APITestCase):
             "testuser", "test@example.com", "testpassword"
         )
         self.client.login(username="testuser", password="testpassword")
+        add_organisations()
+        add_countries()
 
     def test_user_can_update_language(self) -> None:
         # GIVEN