Can we push source jar to maven repo?

[Yohahaha]

The downloaded source jar is empty currently, when integrating celeborn in other projects(Gluten), it's impossible to jump to celeborn source code in one IDEA window, developer must keep switching in every jump.

➜  ~/Downloads jar -tf celeborn-client-spark-3-shaded_2.12-0.4.0-incubating-sources.jar
META-INF/MANIFEST.MF
META-INF/
META-INF/licenses/
META-INF/LICENSE
META-INF/NOTICE
META-INF/licenses/LICENSE-protobuf.txt

It would be great and helpful if we could push source jar just like other project, such as Spark.

cc @waitinfuture @FMX