bump kotlin ver

[Rattlyy]

264

[casid]

Thanks @Rattlyy!

Could you also please adjust the following two test files?

test/jte-runtime-cp-test-gradle-kotlin/build.gradle.kts test/jte-runtime-cp-test-gradle-kotlin-convention/build.gradle.kts

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (f432fcd) 91.00% compared to head (c6e32b6) 91.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #265 +/- ## ========================================= Coverage 91.00% 91.00% Complexity 1180 1180 ========================================= Files 75 75 Lines 3102 3102 Branches 479 479 ========================================= Hits 2823 2823 Misses 172 172 Partials 107 107 ```

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[casid]

Superseded by #268