fix(deps): update dependency org.jetbrains.kotlinx:kotlinx-serialization-json to v1.6.3

Author: renovate[bot]

build.gradle.kts

@@ -29,7 +29,7 @@ repositories {
 
 extra["testcontainersVersion"] = "1.19.4"
 extra["fmodelVersion"] = "3.5.1-SNAPSHOT"
-extra["kotlinxSerializationJson"] = "1.6.2"
+extra["kotlinxSerializationJson"] = "1.6.3"
 extra["kotlinxCollectionsImmutable"] = "0.3.7"
 extra["kotlinLogging"] = "3.0.5"
 extra["kotlinxCoroutinesTest"] = "1.7.3"