Update kotlin monorepo to v2

renovate[bot] · web-flow · commit e09debf6e616 · 2026-04-27T15:42:15.000Z
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 
-kotlin = "1.9.20" # should match Gradle's embedded Kotlin version https://docs.gradle.org/current/userguide/compatibility.html#kotlin
+kotlin = "2.4.20-neptune-246" # should match Gradle's embedded Kotlin version https://docs.gradle.org/current/userguide/compatibility.html#kotlin
 kotlin-dokka = "1.9.20"
 kotlinx-serialization = "1.6.3"
 
