fix default agent test

[celenechang]

What does this PR do?

Small fix for a test

Motivation

What inspired you to submit this pull request?

Additional Notes

Anything else we should know when reviewing?

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

Write there any instructions and details you may have to test your PR.

Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.97%. Comparing base (26e9e9f) to head (452549b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1282      +/-   ##
==========================================
+ Coverage   54.88%   54.97%   +0.08%     
==========================================
  Files         241      243       +2     
  Lines       27931    27986      +55     
==========================================
+ Hits        15331    15386      +55     
  Misses      11730    11730              
  Partials      870      870              

Flag	Coverage Δ
unittests	54.97% <ø> (+0.08%)	⬆️

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see 1 file with indirect coverage changes

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