Update kotlin monorepo to v2

Author: renovate[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@
 jvmTarget = "11"
 kotlinTarget = "1.8"
 
-kotlin = "1.9.25"                        # https://github.com/JetBrains/kotlin/releases
+kotlin = "2.1.0"                        # https://github.com/JetBrains/kotlin/releases
 
 kotlinSymbolProcessing = "1.9.25-1.0.20" # https://github.com/google/ksp/releases
 kotlinCompileTesting = "1.6.0"           # https://github.com/tschuchortdev/kotlin-compile-testing/releases