added retries for agent cgroups test

[nagworld9]

Description

Sometimes test checks are happening before agent setup the cgroups, which causing test failures

Issue #

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PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.63%. Comparing base (dd6c465) to head (f694ce6).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #3075   +/-   ##
========================================
  Coverage    71.63%   71.63%           
========================================
  Files          110      110           
  Lines        16433    16433           
  Branches      2352     2352           
========================================
  Hits         11771    11771           
  Misses        4110     4110           
  Partials       552      552           

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[narrieta]

can we add comments on why the retry is needed?

[nagworld9]

addressed