chore(deps): bump the kotlin group across 1 directory with 2 updates

Bumps the kotlin group with 2 updates in the / directory: [org.jetbrains.kotlin:kotlin-gradle-plugin](https://github.com/JetBrains/kotlin) and [org.jetbrains.kotlin:kotlin-serialization](https://github.com/JetBrains/kotlin).


Updates `org.jetbrains.kotlin:kotlin-gradle-plugin` from 2.3.21 to 2.4.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.21...v2.4.0)

Updates `org.jetbrains.kotlin:kotlin-serialization` from 2.3.21 to 2.4.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.21...v2.4.0)

Updates `org.jetbrains.kotlin:kotlin-serialization` from 2.3.21 to 2.4.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.21...v2.4.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: kotlin
- dependency-name: org.jetbrains.kotlin:kotlin-serialization
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: kotlin
- dependency-name: org.jetbrains.kotlin:kotlin-serialization
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: kotlin
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ atomicfu = "0.33.0"
 binaryCompatibilityValidatorPlugin = "0.18.1"
 detekt = "2.0.0-alpha.3"
 dokka = "2.2.0"
-kotlin = "2.3.21"
+kotlin = "2.4.0"
 kover = "0.9.8"
 ktlint = "14.2.0"
 knit = "0.5.1"