906.test run yamls

[singhd789]

Describe your changes

Adding test yaml configs for fre run subtool development

Issue ticket number and link (if applicable)

Fixes #906

Checklist before requesting a review

• I ran my code
• I tried to make my code readable
• I tried to comment my code
• I wrote a new test, if applicable
• I wrote new instructions/documentation, if applicable
• I ran pytest and inspected it's output
• I ran pylint and attempted to implement some of it's feedback
• No print statements; all user-facing info uses logging module

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[singhd789]

Thought: should this fre run example and fre make null model yamls be added to fre-examples as kind of "basic" examples? 👀

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.36%. Comparing base (705f6cf) to head (1ad640c).
⚠️ Report is 13 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #907   +/-   ##
=======================================
  Coverage   84.36%   84.36%           
=======================================
  Files          71       71           
  Lines        5003     5003           
=======================================
  Hits         4221     4221           
  Misses        782      782           

Flag	Coverage Δ
unittests	84.36% <ø> (ø)

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