chore: bump jvm from 2.1.10 to 2.1.20 in /dgs-subscription-sse

Bumps [jvm](https://github.com/JetBrains/kotlin) from 2.1.10 to 2.1.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.10...v2.1.20)

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

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

Author: dependabot[bot]

dgs-subscription-sse/build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
     id("org.springframework.boot") version "3.4.2"
     id("io.spring.dependency-management") version "1.1.7"
 
-    kotlin("jvm") version "2.1.10"
+    kotlin("jvm") version "2.1.20"
     kotlin("plugin.spring") version "2.1.20"
     id("com.netflix.dgs.codegen") version "7.0.3" //https://plugins.gradle.org/plugin/com.netflix.dgs.codegen
 }