Remove Gradle Kotlin DSL Lazy Property Assignment

[KotlinIsland]

because it's default now

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7cc969a) 27.58% compared to head (300c4ef) 27.58%.
Report is 10 commits behind head on main.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #424   +/-   ##
=======================================
  Coverage   27.58%   27.58%           
=======================================
  Files           4        4           
  Lines          29       29           
=======================================
  Hits            8        8           
  Misses         21       21           

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[hsz]

Thanks!

Just FTR, changes in gradle.properties have to be done in two files: the main one and the one from the template cleanup directory.