Fix API violation from OTel Agent

[swang392]

What does this PR do?

Fixes API violation from #1559

Motivation

https://github.com/DataDog/datadog-operator/actions/runs/12434980195/job/34719814433#step:6:43 API rule violations occur when running make generate

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

Verify that error has been resolved in CI: https://github.com/DataDog/datadog-operator/actions/runs/12659013902/job/35277172303?pr=1607 looks good

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 48.94%. Comparing base (87f8143) to head (b869098).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1607   +/-   ##
=======================================
  Coverage   48.94%   48.94%           
=======================================
  Files         227      227           
  Lines       20636    20636           
=======================================
  Hits        10101    10101           
  Misses      10010    10010           
  Partials      525      525           

Flag	Coverage Δ
unittests	48.94% <ø> (ø)

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

Files with missing lines	Coverage Δ
api/datadoghq/v2alpha1/datadogagent_types.go	100.00% <ø> (ø)

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