feat: Allow to fail the build when sass deprecation warnings found

[just-boris]

Issue #, if available: cloudscape-design/components#2571

Description of changes:

Detect and fail when deprecation warnings mentioned in cloudscape-design/components#2571 are found.

Made this an opt-in flag to allow gradual migration for our existing code.

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I explored an alternative option about stylelint rule, but this is not possible to detect this case using stylelint, because it requires actual compliation of the sass code, to see where the issue happens

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[just-boris]

Upgrading sass is needed, because our older version does not contain the warning

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.82%. Comparing base (9590d0c) to head (33af3b5).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #90      +/-   ##
==========================================
+ Coverage   95.78%   95.82%   +0.04%     
==========================================
  Files          47       47              
  Lines        3016     3045      +29     
  Branches      399      408       +9     
==========================================
+ Hits         2889     2918      +29     
  Misses        123      123              
  Partials        4        4              

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