Fix black linting

.gitlab-ci.yml

@@ -124,7 +124,7 @@ black:
   before_script:
     - pip install black
   script:
-    - black --check --diff api/
+    - black --check --diff .
   only:
     refs:
       - branches

api/funkwhale_api/federation/utils.py

@@ -67,7 +67,11 @@ def slugify_username(username):
 
 
 def retrieve_ap_object(
-    fid, actor, serializer_class=None, queryset=None, apply_instance_policies=True,
+    fid,
+    actor,
+    serializer_class=None,
+    queryset=None,
+    apply_instance_policies=True,
 ):
     # we have a duplicate check here because it's less expensive to do those checks
     # twice than to trigger a HTTP request