[Bug]: Expose aws_region to HDF5IO

[CodyCBakerPhD]

What happened?

While establishing benchmarks for various streaming methods, I ran into an error I hadn't observed in the past, Point of termination is https://github.com/h5py/h5py/blob/6b512e5edf80f6660e0f07c704ab59faa733008b/h5py/_hl/files.py#L507

Since older versions of h5py don't necessarily run into this, one argument is that ros3 is only supported under those older versions

But it's also only one extra kwarg so easy to pass along

Steps to Reproduce

import pynwb

s3_url = "s3://dandiarchive/blobs/8c5/65f/8c565f28-e5fc-43fe-8fb7-318ad2081319"
io = pynwb.NWBHDF5IO(path=s3_url, mode="r", load_namespaces=True, driver="ros3")
nwbfile = io.read()
acquisition_path = "ElectricalSeriesAp"
slice_range = (slice(0, 30_000), slice(0, 384))  # ~23 MB
nwbfile.acquisition[acquisition_path].data[slice_range]

Traceback

No response

Operating System

Windows

Python Executable

Conda

Python Version

3.11

Package Versions

No response

[CodyCBakerPhD]

#1040 shows how to resolve but does not go the extra mile to properly expose it to the outer level. Probably a follow-up PR on pynwb to expose it there too