I can see that the library has migrated to AndroidX, which is great. However, when we turned off Jetifier, we found out that one of the dependencies of ProgressPieIndicator still depends on the old support libraries, namely com.github.filippudak.progresspieview:library.
I have forked the project and pulled PR FilipPudak/ProgressPieView#18.
Unfortunately, the project looks dead, so, maybe it is better to create new maven artifact from my fork.