Fix RSpec/ContextWording cop (#24739)

spec/services/follow_service_spec.rb

@@ -7,7 +7,7 @@ RSpec.describe FollowService, type: :service do
 
   let(:sender) { Fabricate(:account, username: 'alice') }
 
-  context 'local account' do
+  context 'when local account' do
     describe 'locked account' do
       let(:bob) { Fabricate(:account, locked: true, username: 'bob') }
 
@@ -138,7 +138,7 @@ RSpec.describe FollowService, type: :service do
     end
   end
 
-  context 'remote ActivityPub account' do
+  context 'when remote ActivityPub account' do
     let(:bob) { Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox') }
 
     before do