ensure storage_options are passed to data loader

[andersy005]

Change Summary

@mgrover1, this PR should fix the issue you ran into with storage_options

In [1]: import intake

In [2]: catalog = intake.open_esm_datastore(
   ...:     'https://raw.githubusercontent.com/NCAR/cesm2-le-aws/main/intake-catalogs/aws-cesm2-le.json'
   ...: )
   ...: catalog
Out[2]: <IPython.core.display.HTML object>

In [3]: catalog_subset = catalog.search(variable='TREFHT', frequency='daily')
   ...: catalog_subset
Out[3]: <IPython.core.display.HTML object>

In [4]: dsets = catalog_subset.to_dataset_dict(storage_options={'anon':True})

--> The keys in the returned dictionary of datasets are constructed as follows:
        'component.experiment.frequency.forcing_variant'
 |████████████████████████████████████████████████████████████████████████████████████████| 100.00% [4/4 00:01<00:00]
In [5]: 

Related issue number

• Fixes To Dataset Dict failing with CESM2-LE Example #506

Checklist

• Unit tests for the changes exist
• Tests pass on CI
• Documentation reflects the changes where applicable