chore(deps): update plugin com.github.johnrengelman.shadow to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.github.johnrengelman.shadow	7.1.2 -> 8.1.1

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 8.61%. Comparing base (dc88d99) to head (e2d8744).

Additional details and impacted files

@@             Coverage Diff             @@
##               main    #800      +/-   ##
===========================================
- Coverage     10.04%   8.61%   -1.44%     
+ Complexity     1945    1480     -465     
===========================================
  Files          6889    6889              
  Lines         67167   67167              
  Branches        279     279              
===========================================
- Hits           6749    5786     -963     
- Misses        60244   61236     +992     
+ Partials        174     145      -29     

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