Update kotlin monorepo to v2.1.20

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ java-toolchain = "17"
 
 compose = "1.7.3"
 agp = "8.7.2"
-kotlin = "2.1.0"
+kotlin = "2.1.20"
 publish = "0.30.0"
 api-validator = "0.17.0"
 atomicfu = "0.27.0"