chore(deps): update dependency @types/sinon to v21

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@types/sinon (source)	20.0.0 -> 21.0.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (ffc6cc8) to head (af0a86c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #252   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines           73        73           
  Branches         5         4    -1     
=========================================
  Hits            73        73           

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