Merge pull request #1814 from Haehnchen/feature/jetbrains-plugins

update "org.jetbrains.*" plugins

Author: Haehnchen

build.gradle.kts

@@ -6,9 +6,9 @@ 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"
+    id("org.jetbrains.intellij") version "1.5.2"
     // Gradle Changelog Plugin
     id("org.jetbrains.changelog") version "1.3.1"
     // Gradle Qodana Plugin