fix: bump the other-dependencies group with 2 updates

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


Updates `org.jetbrains.kotlin.jvm` from 1.9.20 to 1.9.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.20...v1.9.21)

Updates `org.jetbrains.kotlin.plugin.serialization` from 1.9.20 to 1.9.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.20...v1.9.21)

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

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

build.gradle

@@ -9,8 +9,8 @@ plugins {
     id 'io.github.gradle-nexus.publish-plugin' version '1.3.0'
     id 'com.palantir.git-version' version '3.0.0'
     id 'jacoco'
-    id 'org.jetbrains.kotlin.jvm' version '1.9.20'
-    id 'org.jetbrains.kotlin.plugin.serialization' version '1.9.20'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.21'
+    id 'org.jetbrains.kotlin.plugin.serialization' version '1.9.21'
 }
 
 group = 'io.github.lsd-consulting'