Bump org.jetbrains.kotlin.plugin.spring from 1.9.23 to 2.0.21

Bumps [org.jetbrains.kotlin.plugin.spring](https://github.com/JetBrains/kotlin) from 1.9.23 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@v1.9.23...v2.0.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.plugin.spring
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

build.gradle

@@ -32,7 +32,7 @@ plugins {
   id 'io.spring.dependency-management' version '1.1.3'
   id 'org.gradle.crypto.checksum' version '1.4.0'
   id 'org.jetbrains.kotlin.jvm' version '1.9.23'
-  id 'org.jetbrains.kotlin.plugin.spring' version '1.9.23'
+  id 'org.jetbrains.kotlin.plugin.spring' version '2.0.21'
   id 'org.jetbrains.dokka' version '1.9.20'
   id 'maven-publish'
   id 'se.patrikerdes.use-latest-versions' version '0.2.18'