Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/models/account.rb
- app/views/settings/profiles/show.html.haml
- spec/controllers/api/v1/accounts/credentials_controller_spec.rb

Conflicts were due to an increase in account bio length upstream, which
is already covered in glitch-soc through `MAX_BIO_CHARS`.

app/workers/activitypub/delivery_worker.rb

@@ -51,7 +51,7 @@ class ActivityPub::DeliveryWorker
   end
 
   def response_error_unsalvageable?(response)
-    (400...500).cover?(response.code) && response.code != 429
+    (400...500).cover?(response.code) && ![401, 408, 429].include?(response.code)
   end
 
   def failure_tracker