[kustomize] update operator manager rbac

[celenechang]

What does this PR do?

Update cluster role for #1146

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

Deploy the operator with make deploy.

Enable admissionController.cwsInstrumentation and make sure there are no RBAC errors like the following:

{"level":"ERROR","ts":"2024-06-04T18:17:32Z","msg":"Reconciler error","controller":"datadogagent","controllerGroup":"datadoghq.com","controllerKind":"DatadogAgent","datadogAgent":{"name":"datadog","namespace":"system"},"namespace":"system","name":"datadog","reconcileID":"acfb8cb6-e425-4e62-954b-4b2e3e051a63","error":"clusterroles.rbac.authorization.k8s.io \"datadog-cluster-agent\" is forbidden: user \"system:serviceaccount:system:datadog-operator-controller-manager\" (groups=[\"system:serviceaccounts\" \"system:serviceaccounts:system\" \"system:authenticated\"]) is attempting to grant RBAC permissions not currently held:\n{APIGroups:[\"\"], Resources:[\"pods/exec\"], Verbs:[\"create\"]}","errorCauses":[{"error":"clusterroles.rbac.authorization.k8s.io \"datadog-cluster-agent\" is forbidden: user \"system:serviceaccount:system:datadog-operator-controller-manager\" (groups=[\"system:serviceaccounts\" \"system:serviceaccounts:system\" \"system:authenticated\"]) is attempting to grant RBAC permissions not currently held:\n{APIGroups:[\"\"], Resources:[\"pods/exec\"], Verbs:[\"create\"]}"}]}

  features:
    admissionController:
      enabled: true
      cwsInstrumentation:
        enabled: true
        mode: "remote_copy"

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 59.32%. Comparing base (f424448) to head (81d8670).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1217   +/-   ##
=======================================
  Coverage   59.32%   59.32%           
=======================================
  Files         177      177           
  Lines       22244    22244           
=======================================
  Hits        13196    13196           
  Misses       8236     8236           
  Partials      812      812           

Flag	Coverage Δ
unittests	59.32% <ø> (ø)

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