Fix build issue with JCenter & Jitpack

[odemolliens]

the current condition impacts too many things and could break the build in some cases, it should be filtered by: org.gradle.api.artifacts.repositories.MavenArtifactRepository

More than that, jitpack.io should not be removed, it's breaking few third-party library that needs it (or make it optional)

I noticed you have put that in place, but it's not always up to date, and so not working for all third party library:

maven {
            url "https://maven.scijava.org/content/repositories/jitpack/"
      }