[OU] web_disable_export_group: Fix when migration happened on 13.0

web_disable_export_group/migrations/14.0.1.1.0/pre-migration.py

@@ -3,6 +3,8 @@ from openupgradelib import openupgrade
 
 @openupgrade.migrate()
 def migrate(env, version):
+    # Otherwise, the migration already happened on 13.0
+    if not env.ref("web_disable_export_group.group_export_xlsx_data", False):
         openupgrade.rename_xmlids(
             env.cr,
             [