Support OTLP logs configuration

[shuheiktgw]

What does this PR do?

Closes #1442

Motivation

Support OTLP logs configuration

Additional Notes

N/A

Minimum Agent Versions

N/A

Describe your test plan

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 50.00000% with 26 lines in your changes missing coverage. Please review.

Project coverage is 49.33%. Comparing base (1c16822) to head (fe91a32).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
...al/controller/datadogagent/feature/otlp/feature.go	58.06%	11 Missing and 2 partials ⚠️
internal/controller/testutils/agent.go	0.00%	13 Missing ⚠️

❌ Your patch status has failed because the patch coverage (50.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1703   +/-   ##
=======================================
  Coverage   49.33%   49.33%           
=======================================
  Files         219      219           
  Lines       21314    21352   +38     
=======================================
+ Hits        10515    10534   +19     
- Misses      10252    10270   +18     
- Partials      547      548    +1     

Flag	Coverage Δ
unittests	49.33% <50.00%> (+<0.01%)	⬆️

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	91.49% <100.00%> (+0.04%)	⬆️
pkg/testutils/builder.go	91.75% <100.00%> (+0.07%)	⬆️
...al/controller/datadogagent/feature/otlp/feature.go	46.21% <58.06%> (+0.76%)	⬆️
internal/controller/testutils/agent.go	0.00% <0.00%> (ø)

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