What does this PR do?

CONTP-1799

Adds detection of AKS cluster, which leads to configuring DCA with DD_ADMISSION_CONTROLLER_ADD_AKS_SELECTORS env.

AKS system labels doc https://learn.microsoft.com/en-us/azure/aks/use-labels#reserved-system-labels

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

On kind cluster label worker node(s) with a AKS prefixed label

k label node kind-worker kubernetes.azure.com/cluster=kind

Observe DCA is created with

    - name: DD_ADMISSION_CONTROLLER_ADD_AKS_SELECTORS
      value: "true"

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
• All commits are signed (see: signing commits)