bug: write operation won't split payload into chunks following configuration

[leiysky]

Describe the bug

op.write_with("path/to/object", bs)
    .chunk(write_chunk_size) // This configuration isn't enforced, chunk size may be way larger than configured.
    .await;

Steps to Reproduce

Ditto.

Expected Behavior

Payload is splitted into chunks following the configuration.

Additional Context

No response

Are you willing to submit a PR to fix this bug?

• Yes, I would like to submit a PR.