detekt-cli 1.17.0-RC2 is published with multiple runtime variants

[3flex]

Expected Behavior

Single variant with "org.gradle.usage": "java-runtime" (apiElements) is published in Gradle metadata.

Observed Behavior

Two variants with "org.gradle.usage": "java-runtime" (apiElements, shadowRuntimeElements) are published in Gradle metadata.

Steps to Reproduce

Compare .module file in https://repo1.maven.org/maven2/io/gitlab/arturbosch/detekt/detekt-cli/1.16.0/ & https://repo1.maven.org/maven2/io/gitlab/arturbosch/detekt/detekt-cli/1.17.0-RC2/

Diff: https://gist.github.com/3flex/c82cf481f4d45c0bb38ee04dd769bcb8

Context

This makes it more difficult to consume detekt-cli in Gradle projects, see #3738

[chao2zhang]

It looks like the new runtime variants were introduced in #3574 - It looks like these additional variants are introduced by upgrading shadow plugin.

[3flex]

Thanks, that's pointed me in the right direction.

I'll have a PR soon.