feat(error tracking): add core agent and error tracking standalone settings (#1553)

[celenechang]

What does this PR do?

Cherry-pick #1553

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

Attention: Patch coverage is 74.07407% with 7 lines in your changes missing coverage. Please review.

Project coverage is 49.31%. Comparing base (6d44fca) to head (bc45629).

Files with missing lines	Patch %	Lines
...adogagent/component/clusterchecksrunner/default.go	0.00%	4 Missing ⚠️
...nal/controller/datadogagent/feature/apm/feature.go	75.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            v1.13    #1724      +/-   ##
==========================================
+ Coverage   49.28%   49.31%   +0.03%     
==========================================
  Files         219      219              
  Lines       21289    21316      +27     
==========================================
+ Hits        10492    10512      +20     
- Misses      10250    10256       +6     
- Partials      547      548       +1     

Flag	Coverage Δ
unittests	49.31% <74.07%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ller/datadogagent/defaults/datadogagent_default.go	91.56% <100.00%> (+0.10%)	⬆️
pkg/testutils/builder.go	91.75% <100.00%> (+0.07%)	⬆️
...nal/controller/datadogagent/feature/apm/feature.go	65.89% <75.00%> (+0.37%)	⬆️
...adogagent/component/clusterchecksrunner/default.go	9.41% <0.00%> (-0.18%)	⬇️

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6d44fca...bc45629. Read the comment docs.