Bump kotlinVersion from 1.9.20 to 1.9.21

Bumps `kotlinVersion` from 1.9.20 to 1.9.21.

Updates `jvm` from 1.9.20 to 1.9.21

Updates `plugin.allopen` from 1.9.20 to 1.9.21

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

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

settings.gradle.kts

@@ -1,6 +1,6 @@
 pluginManagement {
     val jandexPluginVersion = "1.1.0" // https://plugins.gradle.org/plugin/org.kordamp.gradle.jandex
-    val kotlinVersion = "1.9.20" // https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-stdlib
+    val kotlinVersion = "1.9.21" // https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-stdlib
     val ktlintVersion = "11.6.1" // https://mvnrepository.com/artifact/org.jlleitschuh.gradle/ktlint-gradle
     val springDependencyManagementVersion = "1.1.4" // // https://mvnrepository.com/artifact/io.spring.gradle/dependency-management-plugin
     val quarkusVersion = "3.5.3" // https://mvnrepository.com/artifact/io.quarkus.platform/quarkus-bom