Feature/mysql testing

Change pipeline regarding to execute the Database Tests on native MySQL

articles/apps.py

@@ -20,9 +20,9 @@ class ArticlesConfig(AppConfig):
         from articles.models import User, Tag  # noqa: F401
         # pylint: enable=unused-import
         # pylint: enable=import-outside-toplevel
-    #    if User.objects.filter(id_tag=1).count() == 0:
-    #        user = User(id_tag=1)
-    #        user.save()
-    #        for tag in Tag.objects.all():
-    #            user.favorite_tags.add(tag)
-    #        user.save()
+        if User.objects.filter(id_tag=1).count() == 0:
+            user = User(id_tag=1)
+            user.save()
+            for tag in Tag.objects.all():
+                user.favorite_tags.add(tag)
+            user.save()