Update kotlin monorepo to v2

| datasource | package                                   | from   | to     |
| ---------- | ----------------------------------------- | ------ | ------ |
| maven      | org.jetbrains.kotlin:kotlin-stdlib-jdk8   | 1.8.21 | 2.2.20 |
| maven      | org.jetbrains.kotlin:kotlin-stdlib-common | 1.8.21 | 2.2.20 |

Author: renovate[bot]

gradle/projects.libs.versions.toml

@@ -6,7 +6,7 @@ classgraph = "4.8.157"
 dokka = "1.8.10"
 junit = "5.9.2"
 junitLauncher = "1.9.2"
-kotlin = "1.8.21"
+kotlin = "2.2.20"
 kotest = "5.6.1"
 javaSmt = "3.14.3"
 javaCompileTesting = "0.21.0"