chore(deps): Bump kotlin from 2.2.20 to 2.2.21 (#1485)

Bumps `kotlin` from 2.2.20 to 2.2.21.

Updates `org.jetbrains.kotlin.jvm` from 2.2.20 to 2.2.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.2.21/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.2.20...v2.2.21)

Updates `org.jetbrains.kotlin.plugin.serialization` from 2.2.20 to 2.2.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.2.21/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.2.20...v2.2.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ io-awspring-cloud = "3.4.0"
 io-confluent = "8.1.0"
 io-swagger-core-v3 = "2.2.39"
 jackson-core = "2.20.0"
-kotlin =  "2.2.20"
+kotlin =  "2.2.21"
 node-plugin = "7.1.0"
 nodeVersion = "22.12.0"
 npm = "10.9.0"