Ensure inline_array keeps attributes

[jrbourbeau]

Currently inline_array won't keep attrs around for arrays that it inlines. This PR makes sure attrs are preserved.

cc @martindurant

[martindurant]

We are hitting a hard crash here (on shutdown of the pytest session), which I can only imagine is coming from HDF5 or maybe grib. This will take some debugging...

[jrbourbeau]

Just checking, my guess is this failure is happening on main too. I don't see how that could be related to the changes here (though maybe I'm missing something)

[martindurant]

this failure is happening on main too

Not locally :|

[jrbourbeau]

I just updated the test added here to use a more simple attrs. This seemed to help locally, let's see if it helps in CI. I don't know why the previous attrs were problematic, but the simplified attrs should still be sufficient

[martindurant]

Since it's OK for py38 but crashed on py310, suggests a version problem. I note h5py 3.9.0 just came out.

[martindurant]

Confirmed: pinning h5py makes tests pass https://github.com/fsspec/kerchunk/actions/runs/5978456412/job/16220596021?pr=349

[martindurant]

^ cc @ajelenak

[martindurant]

Pushing the temp fix here, and we can deal with whatever is the underlying problem separately.

[jrbourbeau]

Thanks @martindurant