chore: bump serialization from 1.8.0 to 1.9.0

Bumps `serialization` from 1.8.0 to 1.9.0.

Updates `org.jetbrains.kotlinx:kotlinx-serialization-core` from 1.8.0 to 1.9.0
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.8.0...v1.9.0)

Updates `org.jetbrains.kotlinx:kotlinx-serialization-json` from 1.8.0 to 1.9.0
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.8.0...v1.9.0)

Updates `org.jetbrains.kotlinx:kotlinx-serialization-json-okio` from 1.8.0 to 1.9.0
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.8.0...v1.9.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-core
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json-okio
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 toolbox-plugin-api = "1.1.41749"
 kotlin = "2.1.10"
 coroutines = "1.10.1"
-serialization = "1.8.0"
+serialization = "1.9.0"
 okhttp = "4.12.0"
 dependency-license-report = "2.9"
 marketplace-client = "2.0.46"