Add test coverage for rulemaking load

[fec-jli]

Summary (required)

Add test coverage for rulemaking load function in /webservices/legal/rulemaking_docs/rulemaking.py

• Resolves Add rulemaking load function test #6404

Required reviewers

1-2 dev

Impacted areas of the application

Load rulemaking to OpenSearch

How to test

1)Checkout branch
2)pytest

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.51%. Comparing base (e4ea7d9) to head (4237ecb).
⚠️ Report is 7 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #6582      +/-   ##
===========================================
+ Coverage    85.50%   86.51%   +1.01%     
===========================================
  Files           99       99              
  Lines        10484    10484              
===========================================
+ Hits          8964     9070     +106     
+ Misses        1520     1414     -106     

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[pkfec]

Great work, thanks @fec-jli

[hcaofec]

Looks good. Thanks for adding the test coverage. @fec-jli