Add wait in e2e when adding MR approvers

qa/qa/ee/page/merge_request/new.rb

@@ -5,6 +5,8 @@ module QA
     module Page
       module MergeRequest
         module New
+          include QA::Page::Component::Select2
+
           def self.prepended(page)
             page.module_eval do
               view 'ee/app/assets/javascripts/approvals/components/app.vue' do
@@ -60,7 +62,7 @@ module QA
 
               def enter_member(name)
                 within_element(:member_select_field) do
-                  find(".select2-input").set(name)
+                  search_item(name)
                 end
               end
             end

qa/qa/page/component/select2.rb

@@ -18,10 +18,14 @@ module QA
           end
         end
 
-        def search_and_select(item_text)
+        def search_item(item_text)
           find('.select2-input').set(item_text)
 
           wait_for_search_to_complete
+        end
+
+        def search_and_select(item_text)
+          search_item(item_text)
 
           select_item(item_text)
         end