Autofix Rubocop RSpec/LeadingSubject (#23670)

spec/lib/activitypub/activity/reject_spec.rb

@@ -121,6 +121,8 @@ RSpec.describe ActivityPub::Activity::Reject do
   end
 
   context 'given a relay' do
+    subject { described_class.new(json, sender) }
+
     let!(:relay) { Fabricate(:relay, state: :pending, follow_activity_id: 'https://abc-123/456') }
 
     let(:json) do
@@ -138,8 +140,6 @@ RSpec.describe ActivityPub::Activity::Reject do
       }.with_indifferent_access
     end
 
-    subject { described_class.new(json, sender) }
-
     it 'marks the relay as rejected' do
       subject.perform
       expect(relay.reload.rejected?).to be true