test: update hydration catalog documentation golden

Author: aljoscha

test/sqllogictest/autogenerated/mz_internal.slt

@@ -391,7 +391,7 @@ dropped_at  timestamp␠with␠time␠zone  Wall-clock␠timestamp␠of␠when
 query TTT
 SELECT name, type, comment FROM objects WHERE schema = 'mz_internal' AND object = 'mz_object_hydration_history' ORDER BY position
 ----
-object_id  text  The␠ID␠of␠the␠object's␠dataflow,␠as␠reported␠by␠the␠replica.␠Join␠`mz_internal.mz_object_global_ids`␠to␠reach␠the␠index␠or␠materialized␠view,␠which␠may␠no␠longer␠exist.
+object_id  text  The␠ID␠of␠the␠object's␠dataflow,␠as␠reported␠by␠the␠replica.␠Join␠`mz_internal.mz_object_global_ids`␠to␠reach␠the␠index␠or␠materialized␠view␠while␠that␠mapping␠exists.␠Dropping␠the␠dataflow␠retracts␠the␠mapping,␠so␠historical␠IDs␠may␠no␠longer␠resolve.
 cluster_id  text  The␠ID␠of␠the␠object's␠cluster.
 replica_id  text  The␠ID␠of␠the␠cluster␠replica.␠May␠name␠a␠replica␠that␠no␠longer␠exists.
 installed_at  timestamp␠with␠time␠zone  When␠the␠object's␠dataflow␠was␠installed␠on␠the␠replica.