Fix broken master in ee/spec/features/boards/boards_spec.rb

The test with the feature flag disabled was not actually disabled
between browser tests. We need to ensure the flag is set before the
browser visits the page for the feature flag to take effect in time.

Closes https://gitlab.com/gitlab-org/gitlab/issues/36936

ee/spec/features/boards/boards_spec.rb

@@ -196,15 +196,15 @@ describe 'issue boards', :js do
     let!(:list) { create(:list, board: board, label: label, position: 1) }
 
     before do
+      stub_licensed_features(wip_limits: wip_limits)
+
       project.add_developer(user)
       login_as(user)
       visit project_boards_path(project)
     end
 
     context 'When FF is turned on' do
-      before do
-        stub_licensed_features(wip_limits: true)
-      end
+      let(:wip_limits) { true }
 
       it 'shows the list settings button' do
         expect(page).to have_selector(:button, "List Settings")
@@ -212,6 +212,8 @@ describe 'issue boards', :js do
     end
 
     context 'When FF is turned off' do
+      let(:wip_limits) { false }
+
       it 'shows the list settings button' do
         expect(page).to have_no_selector(:button, "List Settings")
       end