Add otel collector configdata annotations (#1628)

[swang392]

What does this PR do?

Cherry-pick #1628

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 66.66667% with 10 lines in your changes missing coverage. Please review.

Project coverage is 48.78%. Comparing base (af8c5e7) to head (704155a).

Files with missing lines	Patch %	Lines
...ller/datadogagent/feature/otelcollector/feature.go	66.66%	8 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            v1.12    #1630      +/-   ##
==========================================
+ Coverage   48.76%   48.78%   +0.02%     
==========================================
  Files         235      235              
  Lines       21125    21145      +20     
==========================================
+ Hits        10301    10315      +14     
- Misses      10287    10291       +4     
- Partials      537      539       +2     

Flag	Coverage Δ
unittests	48.78% <66.66%> (+0.02%)	⬆️

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

Files with missing lines	Coverage Δ
...ller/datadogagent/feature/otelcollector/feature.go	86.50% <66.66%> (-2.31%)	⬇️

---

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 af8c5e7...704155a. Read the comment docs.