Building from sources fails due to broken dav4jvm dependency

[yan12125]

Per app/build.gradle, this project wants a specific commit of dav4jvm (bitfireAT/dav4jvm@c1bc143), but it seems jitpack does not keep snapshots for commits forever.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugAidl'.
> Could not resolve all files for configuration ':app:debugCompileClasspath'.
   > Could not find com.github.bitfireAT:dav4jvm:02fe1a95e6.
     Searched in the following locations:
       - https://dl.google.com/dl/android/maven2/com/github/bitfireAT/dav4jvm/02fe1a95e6/dav4jvm-02fe1a95e6.pom
       - https://repo.maven.apache.org/maven2/com/github/bitfireAT/dav4jvm/02fe1a95e6/dav4jvm-02fe1a95e6.pom
       - https://jitpack.io/com/github/bitfireAT/dav4jvm/02fe1a95e6/dav4jvm-02fe1a95e6.pom
     Required by:
         project ':app'

The desired dav4jvm commit is included in dav4jvm >= 3.0.0. I tried 3.0.2 and got lots of errors.

Maybe this repo should be updated to newer dav4jvm?