MDEV-8760 main.mysqlbinlog_row_big fails due to new default for max_allowed_packet

Follow-up for MDEV-6066: new default value, the result file needs to be updated

mysql-test/r/mysqlbinlog_row_big.result

@@ -97,6 +97,6 @@ FLUSH LOGS;
 # Cleanup.
 #
 # reset variable value to pass testcase checks
-SET @@global.max_allowed_packet = 1048576;
+SET @@global.max_allowed_packet = 4194304;
 DROP TABLE t1;
 remove_file $MYSQLTEST_VARDIR/tmp/mysqlbinlog_big_1.out