Gradle 8.5 support?

[perlun]

Hi,

Thanks for an interesting project. I discovered it because it was mentioned here: https://github.com/gradle/gradle/issues/19973#issuecomment-1046727079, which I found because I was also looking into why Logback logging is seemingly "broken" for projects using the Gradle Test Kit in our case.

However, I noticed that https://central.sonatype.com/artifact/dev.gradleplugins/gradle-test-kit/versions doesn't yet contain any Gradle 8.5-targeting version. I guess this just hasn't been done yet, since Gradle 8.5 was released so recently?