build(deps): bump kotlinx-serialization from 1.5.1 to 1.6.0

Bumps `kotlinx-serialization` from 1.5.1 to 1.6.0.

Updates `org.jetbrains.kotlinx:kotlinx-serialization-core` from 1.5.1 to 1.6.0
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.5.1...v1.6.0)

Updates `org.jetbrains.kotlinx:kotlinx-serialization-json` from 1.5.1 to 1.6.0
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.5.1...v1.6.0)

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -26,7 +26,7 @@ kotlinx-io                     = "0.2.1"
 kotlinx-atomicfu               = "0.21.0"
 kotlinx-coroutines             = "1.7.3"
 kotlinx-datetime               = "0.4.0"
-kotlinx-serialization          = "1.5.1"
+kotlinx-serialization          = "1.6.0"
 kotlinx-collections-immutable  = "0.3.5"
 kotlinx-lincheck               = "2.23-IDEA-PLUGIN"
 kotlinx-benchmark              = "0.4.8"