Update kotlin to v1.9.25

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin.plugin.serialization	1.8.0 -> 1.9.25
org.jetbrains.kotlin.jvm	1.8.0 -> 1.9.25

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[codecov-commenter]

Codecov Report

Merging #22 (faef529) into main (19840be) will increase coverage by 0.30%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main      #22      +/-   ##
============================================
+ Coverage     73.36%   73.67%   +0.30%     
+ Complexity      529      528       -1     
============================================
  Files           167      167              
  Lines          4280     4288       +8     
  Branches        531      512      -19     
============================================
+ Hits           3140     3159      +19     
- Misses          864      869       +5     
+ Partials        276      260      -16     

see 13 files with indirect coverage changes

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