chore(deps): bump org.jetbrains.kotlin.plugin.serialization

Bumps [org.jetbrains.kotlin.plugin.serialization](https://github.com/JetBrains/kotlin) from 2.4.10 to 2.4.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v2.4.10...v2.4.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.4.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 #jetbrains
-kotlin = "2.4.10"
+kotlin = "2.4.20"
 #KSP
 kotlinxSerializationJson = "1.11.0"
 ksp = "2.3.11"