Update Kotlin Dependencies

Author: renovate[bot]

Fruitties/gradle/libs.versions.toml

@@ -21,10 +21,10 @@ androidx-lifecycle = "2.9.1"
 atomicfu = "0.27.0"
 composeBom = "2025.06.00"
 dataStore = "1.1.7"
-kotlin = "2.1.10"
+kotlin = "2.1.21"
 kotlinx-coroutines = "1.10.2"
 kotlinxDatetime = "0.6.2"
-ksp = "2.1.10-1.0.31"
+ksp = "2.1.21-2.0.2"
 ktorVersion = "3.1.3"
 pagingComposeAndroid = "3.3.6"
 skie = "0.10.1"