Adds 'workloadcaptureproxy' feature to inject a proxy sidecar as part of the Agent daemonset

[chouetz]

What does this PR do?

[!INFO]
This PR is based on #2253

Motivation

• Add a WorkloadCapturer new container
• Update its permissions so that it is allowed to do operations on container sockets

Additional Notes

• PR for innovation week

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

❌ Patch coverage is 0% with 125 lines in your changes missing coverage. Please review.
✅ Project coverage is 38.09%. Comparing base (9a933b7) to head (df228a3).
⚠️ Report is 10 commits behind head on main.

Files with missing lines	Patch %	Lines
...r/datadogagent/feature/workloadcapturer/feature.go	0.00%	66 Missing ⚠️
...controller/datadogagent/component/agent/default.go	0.00%	59 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2282      +/-   ##
==========================================
- Coverage   39.10%   38.09%   -1.02%     
==========================================
  Files         254      257       +3     
  Lines       26329    21437    -4892     
==========================================
- Hits        10297     8166    -2131     
+ Misses      15418    12642    -2776     
- Partials      614      629      +15     

Flag	Coverage Δ
unittests	38.09% <0.00%> (-1.02%)	⬇️

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Files with missing lines	Coverage Δ
internal/controller/datadogagent/controller.go	45.45% <ø> (-4.55%)	⬇️
...controller/datadogagent/component/agent/default.go	6.17% <0.00%> (-1.40%)	⬇️
...r/datadogagent/feature/workloadcapturer/feature.go	0.00% <0.00%> (ø)

... and 238 files with indirect coverage changes

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