Update actions/upload-artifact digest to b4b15b8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/upload-artifact	action	digest	6546280 -> b4b15b8

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.18%. Comparing base (6ca4bd0) to head (1e7ff54).

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Additional details and impacted files

@@            Coverage Diff            @@
##               main      #96   +/-   ##
=========================================
  Coverage     94.18%   94.18%           
  Complexity      283      283           
=========================================
  Files            12       12           
  Lines           946      946           
  Branches        171      171           
=========================================
  Hits            891      891           
  Misses           44       44           
  Partials         11       11           

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