columnstore/oracle.func_concat_oracle fails with 10.6 after the fix to 11.8

--- /usr/share/mysql/mysql-test/plugin/columnstore/columnstore/oracle/func_concat_oracle.result	2025-06-03 09:38:44.000000000 +0200

+++ /usr/share/mysql/mysql-test/plugin/columnstore/columnstore/oracle/func_concat_oracle.reject	2025-06-03 13:22:11.705073964 +0200

@@ -355,7 +355,7 @@

 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra

 1	PUSHED SELECT	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL

 Warnings:

-Note	1003	select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like convert(concat('%','b') using utf8mb4) order by "test"."t1"."ord"

+Note	1003	select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like convert(concat('%','b') using utf8mb3) order by "test"."t1"."ord"

 SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;

 c1

 abc