[AGENTONB-2550] Add validation on DDA and DAP name length

[tbavelier]

What does this PR do?

• Adds API-server validation to limit DDA and DAP name lengths to 34 and 57 respectively

Motivation

• We derive labels/names from these, and labels in k8s are limited to 63 characters. A longer value prevents the object from being re-conciled, which appears in the operator as an error log. Let's instead error out at object creation time so it's more user apparent:

Additional Notes

• The DDA name is limited by the metrics-server service from cluster agent, using DDA name + cluster-agent-metrics-server
• The DAP name is limited by the -agent suffix once metadata update is rolled out

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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 39.07%. Comparing base (5fddea2) to head (7772d4e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2205   +/-   ##
=======================================
  Coverage   39.07%   39.07%           
=======================================
  Files         253      253           
  Lines       26054    26054           
=======================================
  Hits        10180    10180           
  Misses      15267    15267           
  Partials      607      607           

Flag	Coverage Δ
unittests	39.07% <ø> (ø)

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