Invalid output property causes Gradle build cache miss

[wbonnefond]

I'm submitting a ...

• bug report
• feature request
• support request => Please do not submit support request here, see note at the top of this template.

What is the current behavior?

The allure gradle plugin breaks gradle task caching in Android project unit test task. The allure-results folder is a task output that is not properly configured for task caching.

Build scan: https://scans.gradle.com/s/tmyymdsn62dmq

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

Here is a sample project with reproduction steps: https://github.com/wbonnefond/allure-gradle-cache-failure

What is the expected behavior?

The allure gradle plugin should not make the unit test task incompatible with gradle build cache.

What is the motivation / use case for changing the behavior?

Build cache improves local and CI build times by reducing the amount of work that needs to be done on subsequent task invocations.

Please tell us about your environment:

Allure version	2.21.0
Test framework	[email protected]
Allure gradle plugin	2.11.2