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

Conflicts:
- `.github/dependabot.yml`:
  Upstream made changes while we have dropped this file.
  Keep the file deleted.
- `.prettierignore`:
  Upstream made changes at the end of the file, where we
  had our extra lines.
  Just moved our extra lines back at the end.
- `app/serializers/initial_state_serializer.rb`:
  Upstream code style changes.
  Applied them.
- `app/services/backup_service.rb`:
  Upstream code style changes.
  Applied them.

1 files changed, 1 insertions, 1 deletions

diff --git a/spec/controllers/activitypub/outboxes_controller_spec.rb b/spec/controllers/activitypub/outboxes_controller_spec.rb
index 74bf46a5e..d8d42b7ae 100644
--- a/spec/controllers/activitypub/outboxes_controller_spec.rb
+++ b/spec/controllers/activitypub/outboxes_controller_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
   shared_examples 'cacheable response' do
     it 'does not set cookies' do
       expect(response.cookies).to be_empty
-      expect(response.headers['Set-Cookies']).to be nil
+      expect(response.headers['Set-Cookies']).to be_nil
     end
 
     it 'does not set sessions' do