Add is_valid_uuid to rai_test_utils

[gaugup]

Description

Looks like we try to validate if a string is a valid UUID in our tests. So adding is_valid_uuid to rai_test_utils to import from one common place.

Checklist

• I have added screenshots above for all UI changes.
• I have added e2e tests for all UI changes.
• Documentation was updated if it was needed.

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/AddTestUTilitiesModule/dashboard/index.html

[codecov-commenter]

Codecov Report

Merging #2061 (944947c) into main (d568f3b) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2061      +/-   ##
==========================================
+ Coverage   92.33%   92.34%   +0.01%     
==========================================
  Files          98      100       +2     
  Lines        4957     4967      +10     
==========================================
+ Hits         4577     4587      +10     
  Misses        380      380              

Flag	Coverage Δ
unittests	92.34% <100.00%> (+0.01%)	⬆️

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Impacted Files	Coverage Δ
...ai_test_utils/rai_test_utils/utilities/__init__.py	100.00% <100.00%> (ø)
rai_test_utils/rai_test_utils/utilities/utils.py	100.00% <100.00%> (ø)

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/AddTestUTilitiesModule/dashboard/index.html

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/AddTestUTilitiesModule/dashboard/index.html