Fix test_Config_read_config

[lewisblake]

Change Summary

This test was checking to see that the correct number of paths existed on lustre, but the code is not responsible for whether these paths exists - they can be deleted at anytime. A commented has been shared in the chat that those responsible for these data should submit PRs updating the paths in paths.ini

Related issue number

Close #1054

Checklist

• Start with a draft-PR
• The PR title is a good summary of the changes
• PR is set to AeroTools and a tentative milestone
• Documentation reflects the changes where applicable
• Tests for the changes exist where applicable
• Tests pass locally
• Tests pass on CI
• At least 1 reviewer is selected
• Make PR ready to review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.22%. Comparing base (bb8c0ec) to head (dfb1fa9).
Report is 3 commits behind head on main-dev.

Additional details and impacted files

@@            Coverage Diff            @@
##           main-dev    #1105   +/-   ##
=========================================
  Coverage     79.22%   79.22%           
=========================================
  Files           110      110           
  Lines         19086    19087    +1     
=========================================
+ Hits          15121    15122    +1     
  Misses         3965     3965           

Flag	Coverage Δ
unittests	79.22% <ø> (+<0.01%)	⬆️

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[thorbjoernl]

LGTM