Bump org.jetbrains.kotlinx:kotlinx-serialization-json

Bumps [org.jetbrains.kotlinx:kotlinx-serialization-json](https://github.com/Kotlin/kotlinx.serialization) from 1.6.0 to 1.6.3.
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Kotlin/kotlinx.serialization/compare/v1.6.0...v1.6.3)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

gradle/libs.versions.toml

@@ -43,7 +43,7 @@ junit4 = "4.13.2"
 kotlin = "1.9.21"
 kotlinxCoroutines = "1.7.3"
 kotlinxDatetime = "0.5.0"
-kotlinxSerializationJson = "1.6.0"
+kotlinxSerializationJson = "1.6.3"
 ksp = "1.9.21-1.0.16"
 okhttp = "4.12.0"
 protobuf = "3.25.2"