Update agent collector config

[sjberman]

Problem: Agent updated the structure of the collector configuration.

Solution: Update our agent config template to match the new structure.

Testing: Verified that metrics still work.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.78%. Comparing base (7854d84) to head (bc35201).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3396      +/-   ##
==========================================
+ Coverage   86.73%   86.78%   +0.05%     
==========================================
  Files         129      129              
  Lines       14928    14928              
  Branches       62       62              
==========================================
+ Hits        12948    12956       +8     
+ Misses       1828     1822       -6     
+ Partials      152      150       -2     

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