Fix invalid test

ee/spec/lib/gitlab/geo/replicator_spec.rb

@@ -50,7 +50,7 @@ describe Gitlab::Geo::Replicator do
       subject { DummyModel.new }
 
       it 'adds replicator method to the model' do
-        expect(subject).respond_to? :replicator
+        expect(subject).to respond_to(:replicator)
       end
 
       it 'instantiates a replicator into the model' do