Bump org.jetbrains.kotlin.plugin.spring from 1.9.10 to 1.9.21 (#59)

Bumps [org.jetbrains.kotlin.plugin.spring](https://github.com/JetBrains/kotlin) from 1.9.10 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@v1.9.10...v1.9.21)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
 	id("org.springframework.boot") version "3.2.0"
 	id("io.spring.dependency-management") version "1.1.3"
 	id("org.jetbrains.kotlin.jvm") version "1.9.10"
-	id("org.jetbrains.kotlin.plugin.spring") version "1.9.10"
+	id("org.jetbrains.kotlin.plugin.spring") version "1.9.21"
 	id("com.adarshr.test-logger") version "4.0.0"
 //	id("org.graalvm.buildtools.native") version "0.9.20"
 }