Bump plugin.spring from 1.9.23 to 1.9.24

Bumps [plugin.spring](https://github.com/JetBrains/kotlin) from 1.9.23 to 1.9.24.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.23...v1.9.24)

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

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

kotlin-demo-app/build.gradle.kts

@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     kotlin("jvm") version "1.9.23"
-    kotlin("plugin.spring") version "1.9.23"
+    kotlin("plugin.spring") version "1.9.24"
     id("pg-index-health-test-starter.java-compilation")
     alias(libs.plugins.spring.boot.gradlePlugin)
     alias(libs.plugins.spring.dependency.management)