Update dependency gradle to v8.13

[renovate]

This PR contains the following updates:

Package	Update	Change
gradle (source)	minor	8.12.1 -> 8.13

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Release Notes

gradle/gradle (gradle)

v8.13

Compare Source

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.87%. Comparing base (e3571fd) to head (83e4699).
Report is 6 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #92      +/-   ##
============================================
- Coverage     62.05%   61.87%   -0.19%     
+ Complexity      232      231       -1     
============================================
  Files            16       16              
  Lines          2156     2156              
  Branches        320      320              
============================================
- Hits           1338     1334       -4     
  Misses          629      629              
- Partials        189      193       +4     

Flag	Coverage Δ
libunittests	61.87% <ø> (-0.19%)	⬇️

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