Update Kotlin

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ aboutlib_version = "11.2.3"
 coil_version = "2.7.0"
 coroutines_version = "1.9.0"
 hilt_version = "2.52"
-kotlin_version = "2.0.20"
+kotlin_version = "2.0.21"
 ktor_version = "2.3.12"
 
 [plugins]
@@ -12,7 +12,7 @@ android-application = { id = "com.android.application", version = "8.7.0" }
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin_version" }
 kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin_version" }
 serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin_version" }
-ksp = { id = "com.google.devtools.ksp", version = "2.0.20-1.0.25" }
+ksp = { id = "com.google.devtools.ksp", version = "2.0.21-1.0.25" }
 
 aboutLibraries = { id = "com.mikepenz.aboutlibraries.plugin", version.ref = "aboutlib_version" }
 kotlinter = { id = "org.jmailen.kotlinter", version = "4.4.1" }