add retry when getting the datadog agent in the rc updater

[mftoure]

What does this PR do?

A brief description of the change being made with this pull request.
When getting we receive a new config, the dda might not be ready yet, so this allows a retry method to solve this issue.

Motivation

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Additional Notes

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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

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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

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 23 lines in your changes missing coverage. Please review.

Project coverage is 47.35%. Comparing base (6d4bbd9) to head (27973b7).

Files with missing lines	Patch %	Lines
pkg/remoteconfig/updater.go	0.00%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1412      +/-   ##
==========================================
- Coverage   47.40%   47.35%   -0.06%     
==========================================
  Files         223      223              
  Lines       19244    19266      +22     
==========================================
  Hits         9123     9123              
- Misses       9635     9657      +22     
  Partials      486      486              

Flag	Coverage Δ
unittests	47.35% <0.00%> (-0.06%)	⬇️

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

Files with missing lines	Coverage Δ
pkg/remoteconfig/updater.go	0.00% <0.00%> (ø)

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