Monitor opendal streaming uploader and deprecate the outer MonitoredSteramingUploader

[hzxa21]

After #16929, MonitoredSteramingUploader will only be used by OpenDAL object store. However, the reporting metrics are not exactly what we want because I/O may or may not happen on opendal writer write calls and the I/O scheduling is done inside the implementation of opendal writer.

However, after apache/opendal#4638, whenever a I/O happens in the opendal writer, it will invoke the execute method provided by the Executor implemented by us. We should monitor I/O metrics in the Executor and deprecate the outer MonitoredStreamingUploader completely.

[hzxa21]

After #17198, the metrics related to streaming uploader has already been moved into opendal object store. I will try to see whether we can completely deprecate MonitoredSteramingUploader.

[hzxa21]

Resolved by #17198