Update kotlin monorepo to v2.2.21

Author: renovate[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ compose-multiplatform = "1.8.2"
 firebaseBom = "34.1.0"
 googleServices = "4.4.3"
 koin = "4.1.0"
-kotlin = "2.2.10"
+kotlin = "2.2.21"
 kotlinx-serialization = "1.9.0"
 markdownRenderer = "0.35.0"
 composeLifecyleRuntime="2.9.2"