Bump up gradle and libraries

[jsoizo]

• Gradle version to 8.8
• bump up kotlinx-coroutines-core and kotest
• generate dokkaHtml when publishing to Maven Central

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.98%. Comparing base (0c842e4) to head (98e2904).
Report is 6 commits behind head on version_2_0_0.

Additional details and impacted files

@@              Coverage Diff               @@
##           version_2_0_0     #154   +/-   ##
==============================================
  Coverage          91.98%   91.98%           
==============================================
  Files                 12       12           
  Lines                337      337           
  Branches              74       74           
==============================================
  Hits                 310      310           
  Misses                13       13           
  Partials              14       14           

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