chore(deps): bump org.jetbrains.kotlin.jvm from 2.1.20 to 2.1.21

Bumps [org.jetbrains.kotlin.jvm](https://github.com/JetBrains/kotlin) from 2.1.20 to 2.1.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.20...v2.1.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-version: 2.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -33,7 +33,7 @@ plugins {
   id("org.jetbrains.grammarkit") version "2022.3.2.2"
   id("checkstyle")
   id("com.avast.gradle.docker-compose") version "0.17.12"
-  id("org.jetbrains.kotlin.jvm") version "2.1.20"
+  id("org.jetbrains.kotlin.jvm") version "2.1.21"
   id("idea")
 }