Pin kube-openapi version

[khewonc]

What does this PR do?

Pin version of kube-openapi. Dependabot is installing a newer version that doesn't have some of the flags used for our current build command:

k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340

Other PRs use this version:

k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9

Seeing if pinning the version to the older one helps dependabot

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

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Checklist

• [x] PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• [x] PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 54.89%. Comparing base (6696b45) to head (d5c026b). Report is 375 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1270   +/-   ##
=======================================
  Coverage   54.89%   54.89%           
=======================================
  Files         241      241           
  Lines       27901    27901           
=======================================
  Hits        15317    15317           
  Misses      11713    11713           
  Partials      871      871           

Flag	Coverage Δ
unittests	54.89% <ø> (ø)

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