Update kotlinx.serialization to v1.7.3

gradle/libs.versions.toml

@@ -22,7 +22,7 @@ compose-destinations = "2.1.0-beta12"
 kotlin = "2.1.0-Beta1"
 kotlinx-coroutines = "1.9.0"
 kotlinx-datetime = "0.6.1"
-kotlinx-serialization = "1.7.2"
+kotlinx-serialization = "1.7.3"
 ksp = "2.1.0-Beta1-1.0.25"
 ktor = "3.0.0-rc-1"
 okio = "3.9.1"