ISTWCMS-4684: Re-run webform_update_8131()

Sites previously migrated from WCMS 2 may have "default" instead of
"_default" in email configuration. This update fixes that. New
migrations will be correct after uw_migrate d752ffd.

uw_sites_all.install

@@ -300,3 +300,11 @@ function uw_sites_all_update_8109() {
   ];
   \Drupal::service('module_installer')->install($modules);
 }
+
+/**
+ * Re-run webform_update_8131().
+ */
+function uw_sites_all_update_8110() {
+  module_load_include('install', 'webform');
+  webform_update_8131();
+}