Change slow start to create strategy (#1416)

[khewonc]

What does this PR do?

Cherry pick #1416

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

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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

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 42.85714% with 24 lines in your changes missing coverage. Please review.

Project coverage is 49.01%. Comparing base (f7ef0be) to head (88a82d2).
Report is 7 commits behind head on v1.9.

Files with missing lines	Patch %	Lines
pkg/agentprofile/agent_profile.go	30.43%	14 Missing and 2 partials ⚠️
...ler/datadogagent/controller_reconcile_v2_common.go	27.27%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             v1.9    #1420   +/-   ##
=======================================
  Coverage   49.01%   49.01%           
=======================================
  Files         223      223           
  Lines       19251    19251           
=======================================
  Hits         9435     9435           
  Misses       9333     9333           
  Partials      483      483           

Flag	Coverage Δ
unittests	49.01% <42.85%> (ø)

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

Files with missing lines	Coverage Δ
...pi/datadoghq/v1alpha1/datadogagentprofile_types.go	100.00% <ø> (ø)
pkg/agentprofile/status.go	100.00% <100.00%> (ø)
...ler/datadogagent/controller_reconcile_v2_common.go	29.96% <27.27%> (ø)
pkg/agentprofile/agent_profile.go	71.63% <30.43%> (ø)

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