stripe: fix XML of a business template exported from Zope2

We now must use Zope4 to export business templates to commit on ERP5
master branch

bt5/erp5_stripe/PathTemplateItem/portal_alarms/check_stripe_payment_session.xml

@@ -61,9 +61,11 @@
             <value>
               <object>
                 <klass>
-                  <global name="DateTime" module="DateTime.DateTime"/>
+                  <global name="_reconstructor" module="copy_reg"/>
                 </klass>
                 <tuple>
+                  <global name="DateTime" module="DateTime.DateTime"/>
+                  <global name="object" module="__builtin__"/>
                   <none/>
                 </tuple>
                 <state>