fixup! erp5_web_renderjs_ui: datetime field formats date in the interface language

bt5/erp5_web_renderjs_ui_test/PathTemplateItem/portal_tests/renderjs_ui_date_time_field_zuite/testDateTimeDefaultToNow.zpt

@@ -163,7 +163,7 @@
 <tr>
   <td>assertText</td>
   <td>//div[@data-gadget-scope='field_my_start_date']//p</td>
-  <td>regexp:12/27/2019 \d\d?:\d\d (AM|PM)</td>
+  <td>regexp:${now} \d\d?:\d\d (AM|PM)</td>
 </tr>
 
 </tbody></table>