Flaky test `storage::transport::tests::open_object_success`

[haphungw]

The test storage::transport::tests::open_object_success failed intermittently with a missing span error.

Error log:

thread 'storage::transport::tests::open_object_success' (45685) panicked at src/storage/src/storage/transport.rs:664:17: missing read_range span for ReadRange::offset(5): []

https://pantheon.corp.google.com/cloud-build/builds;region=us-central1/bb30a1d7-9c71-421d-90f1-f62d76278198?e=SqlStudioMysqlLaunch::SqlStudioMysqlEnabled&mods=allow_workbench_image_override&project=rust-sdk-testing