fix: include ADP container in certain pod-wide volume mount overrides

[tobz]

What does this PR do?

This PR adds the Agent Data Plane container to the list of containers which receive an overridden runtimesocketdir and kubelet-ca volume mount.

Motivation

This is needed to ensure ADP can access the proper socket paths on the host.

Additional Notes

N/A

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: N/A
• Cluster Agent: N/A

Describe your test plan

Ran Operator locally in Kind cluster and observed the ADP container got the same runtimesocketdir and kubelet-ca volume mounts as other containers in Agent pod.

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 48.88%. Comparing base (f8fc41d) to head (f5f630a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1532   +/-   ##
=======================================
  Coverage   48.88%   48.88%           
=======================================
  Files         226      226           
  Lines       20144    20146    +2     
=======================================
+ Hits         9847     9849    +2     
  Misses       9782     9782           
  Partials      515      515           

Flag	Coverage Δ
unittests	48.88% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...nternal/controller/datadogagent/override/global.go	48.11% <100.00%> (+0.30%)	⬆️

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