Bump jvm from 1.6.21 to 2.0.21

Bumps [jvm](https://github.com/JetBrains/kotlin) from 1.6.21 to 2.0.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.6.21...v2.0.21)

---
updated-dependencies:
- dependency-name: jvm
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

buildSrc/build.gradle.kts

@@ -1,6 +1,6 @@
 // https://docs.gradle.org/current/userguide/kotlin_dsl.html#sec:kotlin-dsl_plugin
 plugins {
-    kotlin("jvm") version "1.6.21"
+    kotlin("jvm") version "2.0.21"
 }
 
 repositories {