Improve specs when loading slowly

spec/features/administration_spec.rb

@@ -53,8 +53,12 @@ describe 'LDAP group sync administration spec', type: :feature, js: true do
       memberships = sync.users.pluck(:id)
 
       visit ldap_groups_synchronized_groups_path
+      expect_angular_frontend_initialized
+
       find('.buttons a', text: 'Delete').click
       find('.danger-zone--verification input').set 'attr'
+
+      sleep 2
       click_on 'Delete'
 
       expect(page).to have_selector('.flash.notice', text: I18n.t(:notice_successful_delete))

spec/lib/synchronization_spec.rb

@@ -122,7 +122,7 @@ describe OpenProject::LdapGroups::Synchronization, with_ee: %i[ldap_groups] do
             expect(::LdapGroups::Membership.where(group_id: synced_foo_id).count).to eq(1)
             synced_foo.destroy
 
-            expect { group_foo.reload }.not_to raise_error ActiveRecord::RecordNotFound
+            expect { group_foo.reload }.not_to raise_error
 
             expect(::LdapGroups::Membership.where(group_id: synced_foo_id)).to be_empty
           end