Bump jvm from 1.9.0 to 1.9.20

Bumps [jvm](https://github.com/JetBrains/kotlin) from 1.9.0 to 1.9.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.0...v1.9.20)

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

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

Author: dependabot[bot]

build.gradle.kts

@@ -21,7 +21,7 @@ version = pluginVersion
 println("pluginVersion=$version")
 
 plugins {
-    kotlin("jvm") version "1.9.0"
+    kotlin("jvm") version "1.9.20"
     id("org.jetbrains.intellij") version "1.16.0"
     id("org.jetbrains.grammarkit") version "2022.3.2"
 }