Fix flaky test TestWaitUntilResourceAvailable

[sfc-gh-knozderko]

Description

Fix flaky test TestWaitUntilResourceAvailable

Checklist

• Code compiles correctly
• Code is formatted according to Coding Conventions
• Created tests which fail without the change (if possible)
• All tests passing (dotnet test)
• Extended the README / documentation, if necessary
• Provide JIRA issue id (if possible) or GitHub issue id in PR name

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.37%. Comparing base (0983d94) to head (c718ea3).

Additional details and impacted files

@@                         Coverage Diff                          @@
##           pool/SNOW-860872-connection-pool     #907      +/-   ##
====================================================================
+ Coverage                             82.31%   82.37%   +0.06%     
====================================================================
  Files                                   104      104              
  Lines                                  9876     9876              
  Branches                                912      912              
====================================================================
+ Hits                                   8129     8135       +6     
+ Misses                                 1496     1491       -5     
+ Partials                                251      250       -1     

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