MDEV-24858 SIGABRT in DbugExit from my_malloc in Query_cache::init_cache Regression

disable warnings, as they're different on 32bit platforms

Closes #1757

mysql-test/main/query_cache.result

@@ -2211,8 +2211,6 @@ drop table t1;
 # MDEV-24858 SIGABRT in DbugExit from my_malloc in Query_cache::init_cache Regression
 #
 set global Query_cache_size=18446744073709547520;
-Warnings:
-Warning	1282	Query cache failed to set size 18446744073709547520; new query cache size is 0
 restore defaults
 SET GLOBAL query_cache_type= default;
 SET GLOBAL query_cache_size=@save_query_cache_size;

mysql-test/main/query_cache.test

@@ -1803,7 +1803,9 @@ drop table t1;
 --echo #
 --echo # MDEV-24858 SIGABRT in DbugExit from my_malloc in Query_cache::init_cache Regression
 --echo #
+--disable_warnings
 set global Query_cache_size=18446744073709547520;
+--enable_warnings
 
 --echo restore defaults
 SET GLOBAL query_cache_type= default;