Bump kotlinVersion from 1.9.10 to 1.9.20 (#49)

* Bump kotlinVersion from 1.9.10 to 1.9.20

Bumps `kotlinVersion` from 1.9.10 to 1.9.20.

Updates `org.jetbrains.kotlin:kotlin-test` from 1.9.10 to 1.9.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.10...v1.9.20)

Updates `org.jetbrains.kotlin.jvm` from 1.9.10 to 1.9.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.10...v1.9.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

* Use new K2 compiler

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: StefMa <[email protected]>

gradle.properties

@@ -1,3 +1,4 @@
 kotlin.code.style=official
 org.gradle.jvmargs=-Xmx6g
-org.gradle.caching=true
+org.gradle.caching=true
+kotlin.experimental.tryK2=true

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-kotlinVersion = "1.9.10"
+kotlinVersion = "1.9.20"
 
 [libraries]
 test-kotlinTest = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlinVersion" }