Update kotlin

Author: renovate[bot]

Diff for: gradle/libs.versions.toml

@@ -24,9 +24,9 @@ gradle = "8.5.0"
 gson = "2.11.0"
 hilt = "2.51.1"
 javaPoet = "1.13.0"
-kotlin = "2.0.0"
+kotlin = "2.1.20"
 kotlinPoet = "1.17.0"
-ksp = "2.0.0-1.0.22"
+ksp = "2.1.20-2.0.0"
 material = "1.12.0"
 mockitoAndroid = "5.12.0"
 mockitoKotlin = "5.3.1"