Add CPURequestsRemoveLimitsMemoryRequestsAndLimits controlled values for DPA

[clamoriniere]

Summary

• Adds a new CPURequestsRemoveLimitsMemoryRequestsAndLimits enum value to DatadogPodAutoscalerContainerControlledValues
• This mixed-mode value applies different strategies per resource type:
  • CPU: only requests are controlled and any existing CPU limit is removed, allowing the container to burst freely and avoid CPU throttling
  • Memory: both requests and limits are controlled
• Adds doc comments to all three enum values to clarify their respective behaviours
• Regenerates CRD manifests via make generate

Test plan

• Verify the new enum value is accepted by the CRD validation
• Verify CPU limits are removed when this mode is active
• Verify memory requests and limits are both updated when this mode is active

🤖 Assisted-by: Claude:claude-sonnet-4-6 sparse smatch

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.05%. Comparing base (d09fcb3) to head (c59fc90).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2902   +/-   ##
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  Coverage   40.05%   40.05%           
=======================================
  Files         319      319           
  Lines       28052    28052           
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  Hits        11237    11237           
  Misses      15993    15993           
  Partials      822      822           

Flag	Coverage Δ
unittests	40.05% <ø> (ø)

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[chatgpt-codex-connector]

Regenerate packaged CRDs for new controlledValues enum

This adds CPURequestsRemoveLimitsMemoryRequestsAndLimits to the source CRD schema, but the distributed CRD artifacts still shipped from this repo (bundle/manifests/datadoghq.com_datadogpodautoscalers.yaml and marketplaces/charts/google-marketplace/chart/datadog-mp/templates/manifests.yaml) still only allow RequestsAndLimits and RequestsOnly. In installs that use those packaged manifests (OLM bundle / marketplace), the new mode will be rejected by CRD validation, so the feature is only partially delivered.

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