Update Kotlin and compiler plugins

Author: renovate[bot]

gradle/libs.versions.toml

@@ -22,8 +22,8 @@ hilt = "2.57.2"
 junit4 = "4.13.2"
 jupiter = "5.13.4"
 kotest = "6.0.3"
-kotlin = "2.2.20"
-ksp = "2.2.20-2.0.4"
+kotlin = "2.2.21"
+ksp = "2.3.0"
 material3 = "1.13.0"
 mockk = "1.14.6"
 moshi = "1.15.2"