fixed bug in make_array_dataloader

[SergeEParent]

What does this PR do?

make_array_dataloader would throw an error when trying to pass array, list of arrays, or list of dict of arrays through the data argument. The solution (found with @fatwir) was to only perform OmegaConf.to_object(data) if data was a config, and not if it was an array / list of arrays / etc.
I don't think that this change should have any breaking changes, as the original code was essentially converting a config object to a dict, and was not checking that it was actually taking in a config object.

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[fatwir]

Looks good to me!

[SergeEParent]

Alright, thanks for your help troubleshooting CytoDL!