Use JS class for selector

spec/support/shared_examples/features/protected_branches_access_control_ce.rb

@@ -5,7 +5,7 @@ shared_examples "protected branches > access control > CE" do
 
       set_protected_branch_name('master')
 
-      within('.new_protected_branch') do
+      within('.js-new-protected-branch') do
         allowed_to_push_button = find(".js-allowed-to-push")
 
         unless allowed_to_push_button.text == access_type_name
@@ -50,7 +50,7 @@ shared_examples "protected branches > access control > CE" do
 
       set_protected_branch_name('master')
 
-      within('.new_protected_branch') do
+      within('.js-new-protected-branch') do
         allowed_to_merge_button = find(".js-allowed-to-merge")
 
         unless allowed_to_merge_button.text == access_type_name