Bump org.jetbrains.kotlin.jvm from 1.6.10 to 1.6.20

Bumps org.jetbrains.kotlin.jvm from 1.6.10 to 1.6.20.

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.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

@@ -23,7 +23,7 @@ plugins {
     // Java support
     id("java")
     // Kotlin support
-    id("org.jetbrains.kotlin.jvm") version "1.6.10"
+    id("org.jetbrains.kotlin.jvm") version "1.6.20"
     // Gradle IntelliJ Plugin
     id("org.jetbrains.intellij") version "1.4.0"
     // Gradle Changelog Plugin