Bump org.jetbrains.kotlin.jvm from 2.0.20 to 2.0.21

Bumps [org.jetbrains.kotlin.jvm](https://github.com/JetBrains/kotlin) from 2.0.20 to 2.0.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.21/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20...v2.0.21)

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

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

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ jspecify = { module = "org.jspecify:jspecify", version = "1.0.0" }
 
 [plugins]
 asciidoctor = { id = "org.asciidoctor.jvm.convert", version = "4.0.3" }
-kotlinJvm = { id = "org.jetbrains.kotlin.jvm", version = "2.0.20" }
+kotlinJvm = { id = "org.jetbrains.kotlin.jvm", version = "2.0.21" }
 nexusPublish = { id = "io.github.gradle-nexus.publish-plugin", version = "2.0.0" }
 sonar = { id = "org.sonarqube", version = "5.1.0.4882" }
 spotless = { id = "com.diffplug.spotless", version = "6.25.0" }