failures in spider tests on the valgrind build

spider/bugfix.mdev_34421                 w37 [ fail ]  Found warnings/errors in server log file!

        Test ended at 2024-08-09 11:15:41

line

==80068== Thread 12:

==80068== Conditional jump or move depends on uninitialised value(s)

==80068==    at 0xA76998: temp_file_size_cb_func (mysqld.cc:3858)

==80068==    by 0x121044A: _ma_update_tmp_file_size (ma_info.c:234)

==80068==    by 0x1212A2C: _ma_set_share_data_file_length (ma_state.c:805)

==80068==    by 0x128799F: write_block_record (ma_blockrec.c:3223)

==80068==    by 0x1288873: allocate_and_write_block_record (ma_blockrec.c:3584)

==80068==    by 0x128894D: _ma_write_init_block_record (ma_blockrec.c:3624)

==80068==    by 0x1299E1B: maria_write (ma_write.c:158)

==80068==    by 0x1222F6A: ha_maria::write_row(unsigned char const*) (ha_maria.cc:1289)

==80068==    by 0xCC7920: handler::ha_write_tmp_row(unsigned char*) (sql_class.h:7959)

==80068==    by 0xCD9D40: schema_table_store_record(THD*, TABLE*) (sql_show.cc:4080)

==80068== ---- Print suppression ? --- [Return/N/n/Y/y/C/c] ----

^ Found warnings in /home/buildbot/amd64-fedora-40-valgrind/build/mysql-test/var/37/log/mysqld.1.1.err

ok