Issues upgrading to 3.0.0

Describe the bug

I tried to upgrade to 3.0.0 as 2.8.0 does not seem to be compatible with Android gradle plugin 4.1+. I followed the instructions I found around the repo and replaced all = with set and looked up the example configurations in the readme.

I get two errors:

Cannot set the value of extension 'play' property 'userFraction' of type java.lang.Double using an instance of type java.math.BigDecimal.
No such property: IGNORE for class: org.gradle.api.artifacts.ResolutionStrategy

The first one is especially odd as I use userFraction.set(1.0) which for some reason is a BigDecimal. The second one is a missing import I guess but the readme does not state any import requirements.

Thanks for your support!

How To Reproduce

The code is available here, configuration in app/build.gradle. https://gitlab.com/crysxd/octoapp/-/tree/235-upadte-google-play-publisher

play {
    serviceAccountCredentials.set(file("service-account.json"))
    track.set("beta")
    defaultToAppBundles.set(true)
    resolutionStrategy.set(ResolutionStrategy.IGNORE)
    updatePriority.set(2)
    userFraction.set(1.0)
}

Versions

Gradle Play Publisher: 3.0.0
Gradle Wrapper: 6.5
Android Gradle Plugin: 4.1.1

Tasks executed

Failes to sync, so all tasks :)

Triple-T / gradle-play-publisher