fix: disable migrations since we are not using it

backend/kernelCI/settings.py

@@ -146,3 +146,14 @@ def get_json_env_var(name, default):
 # https://docs.djangoproject.com/en/5.0/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+
+class DisableMigrations:
+    def __contains__(self, item):
+        return True
+
+    def __getitem__(self, item):
+        return None
+
+
+MIGRATION_MODULES = DisableMigrations()