Two more arguments against `kotlin-dsl` :sweat_sm...

# swagger-gradle-codegen

[mbonnin]

Two more arguments against kotlin-dsl 😅
1. it outputs some warnings during build:

> Configure project :gradle-plugin:plugin
WARNING: Unsupported Kotlin plugin version.
The `embedded-kotlin` and `kotlin-dsl` plugins rely on features of Kotlin `1.3.31` that might work differently than in the requested version `1.3.61`.
> Task :gradle-plugin:plugin:compileKotlin
The `kotlin-dsl` plugin applied to project ':gradle-plugin:plugin' enables experimental Kotlin compiler features. For more information see <https://docs.gradle.org/5.5/userguide/kotlin_dsl.html#sec:kotlin-dsl_plugin>

2. Everytime I change something in plugin.gradle.kts , intelliJ is asking me to do a Gradle Sync. I'm not sure if it's strictly needed or if it's just a false detection from intelliJ but in both cases it's annoying