Update kotlin

Author: renovate[bot]

gradle/libs.versions.toml

@@ -32,11 +32,11 @@ firebaseBom = "33.1.1"
 hilt = "2.51.1"
 hiltExt = "1.2.0"
 junit4 = "4.13.2"
-kotlin = "2.0.0"
-kotlinxCoroutines = "1.9.0-RC"
-kotlinxDatetime = "0.6.0"
-kotlinxSerializationJson = "1.7.1"
-ksp = "2.0.0-1.0.22"
+kotlin = "2.0.21"
+kotlinxCoroutines = "1.9.0"
+kotlinxDatetime = "0.6.1"
+kotlinxSerializationJson = "1.7.3"
+ksp = "2.0.21-1.0.26"
 lint = "31.5.0"
 memfault-cloud = "2.0.5"
 okhttp = "4.12.0"