23.3 Backport of #52623 - Fix stress test: check if storage shutdown before we operate MergeTreeDeduplicationLog#366

Enmk merged 1 commit intocustomizations/23.3.19Altinity/ClickHouse:customizations/23.3.19from

backports/23.3.19/52623_fix_stress_test_storage_shutdown_in_mergetreededuplicationlogAltinity/ClickHouse:backports/23.3.19/52623_fix_stress_test_storage_shutdown_in_mergetreededuplicationlogCopy head branch name to clipboard