cubicweb #13822045 index name should follow entity type renaming [validation pending]

currently, when you 'rename_entity_type', index are still using the old table name. We then loose track of them.

prioritynormal
typebug
done in3.23.0
load left0.000
closed by#ebe75d73acdd [schema sync] Rename index when an entity type is renamed
patch[sql gen] Explicitly name unique index [applied][schema sync] Rename index when an entity type is renamed [applied]