Update kotlinx.serialization to v1.7.0

gradle/libs.versions.toml

@@ -23,7 +23,7 @@ compose-destinations = "2.1.0-beta09"
 kotlin = "2.0.0"
 kotlinx-coroutines = "1.8.1"
 kotlinx-datetime = "0.6.0"
-kotlinx-serialization = "1.6.3"
+kotlinx-serialization = "1.7.0"
 ksp = "2.0.0-1.0.22"
 ktor = "3.0.0-beta-1"
 okio = "3.9.0"