Empty return without remote files

[aburrell]

Description

Addresses the presence of an error being raised when no remote files are found, instead of an empty list.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

import datetime as dt
import pysat
import pysatNASA

stime = dt.datetime(2024, 1, 1)
etime = dt.datetime(2024, 2, 1)
out_list = pysatNASA.instruments.methods.cdaweb.cdas_list_remote_files(tag='sdr-disk', inst_id='f18', start=stime, stop=etime, supported_tags=pysatNASA.instruments.dmsp_ssusi.download_tags, series_out=False)
out_series = pysatNASA.instruments.methods.cdaweb.cdas_list_remote_files(tag='sdr-disk', inst_id='f18', start=stime, stop=etime, supported_tags=pysatNASA.instruments.dmsp_ssusi.download_tags, series_out=True)

Note, there is data for this instrument and time, but CDAWeb cannot find it 😿

Test Configuration:

• Operating system: OS X Big Sur
• Version number: Python 3.10
• Any details about your local setup that are relevant: develop branch of pysat

Checklist:

• [x] Make sure you are merging into the develop (not main) branch
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [x] Add a note to CHANGELOG.md, summarizing the changes
• [x] Update zenodo.json file for new code contributors

If this is a release PR, replace the first item of the above checklist with the release checklist on the wiki: https://github.com/pysat/pysat/wiki/Checklist-for-Release

[jklenzing]

Note, there is data for this instrument and time, but CDAWeb cannot find it 😿

The cdasws software sadly does not support ssusi, only ssj and ssm. Just double-checked with the latest version. As test code, this should do what is needed for this bug.