`object_storage_remote_initiator` auth works incorrectly

[ianton-ru]

Describe the bug
object_storage_remote_initiator executes from default user even when cluster settings have different user/password,
Must work also with cluster secret instead of password.

To Reproduce

select date(block_timestamp), count() from ice."aws-public-blockchain.btc"
group by all
settings object_storage_cluster='my-swarm', object_storage_remote_initiator=1

Code: 516. DB::Exception: Received from my-swarm.altinity-antalya.altinity.cloud:9440. DB::Exception: default: Authentication failed: password is incorrect, or there is no user with such name.