More specific assertion for controller spec

I'm adding a more specific/accurate argument assertion
as it was raised that the spec was failing in development.

I'm not sure how this started failing, or why its not failing in master

ee/spec/controllers/registrations/groups_controller_spec.rb

@@ -312,11 +312,11 @@ RSpec.describe Registrations::GroupsController do
                   subject
                 end
 
-                it 'selectivly tracks for the force_company_trial experiment', :experiment do
+                it 'selectively tracks for the force_company_trial experiment', :experiment do
                   wrapped_experiment(experiment(:force_company_trial)) do |e|
                     expect(e.context.value).to include(user: user)
-                    expect(e).to receive(:track).with(:create_group, namespace: an_instance_of(Group))
-                    expect(e).not_to receive(:track).with(:create_trial, namespace: an_instance_of(Group))
+                    expect(e).to receive(:track).with(:create_group, namespace: an_instance_of(Group), user: user)
+                    expect(e).not_to receive(:track).with(:create_trial, namespace: an_instance_of(Group), user: user)
                   end
 
                   subject