chore(deps): bump org.jetbrains.kotlinx:kotlinx-serialization-json (#120)

Bumps [org.jetbrains.kotlinx:kotlinx-serialization-json](https://github.com/Kotlin/kotlinx.serialization) from 1.6.3 to 1.8.1.
- [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/v1.6.3...v1.8.1)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json
  dependency-version: 1.8.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 #jetbrains
 kotlin = "2.1.21"
 #KSP
-kotlinxSerializationJson = "1.6.3"
+kotlinxSerializationJson = "1.8.1"
 ksp = "2.1.21-2.0.1"
 #Detekt
 detekt = "1.23.8"