Temporary fix for breaking change in django-allauth

This should be removed once the corresponding fix upstream in
`django-composed-confiugration` is merged.
kitware-resonant/django-composed-configuration#189

dandiapi/settings.py

@@ -39,6 +39,12 @@ def mutate_configuration(configuration: type[ComposedConfiguration]):
             'dandiapi.zarr.apps.ZarrConfig',
         ] + configuration.INSTALLED_APPS
 
+        # TODO: remove this when the upstream fix is merged
+        # (https://github.com/girder/django-composed-configuration/pull/189)
+        configuration.MIDDLEWARE += [
+            'allauth.account.middleware.AccountMiddleware',
+        ]
+
         # Install guardian
         configuration.INSTALLED_APPS += ['guardian']