Build fails for common-config

running mvn -pl :common-config package from the parent folder gives the following error:

[ERROR] Failed to execute goal on project common-config: Could not resolve dependencies for project io.confluent:common-config:jar:5.2.0-SNAPSHOT: The following artifacts could not be resolved: io.confluent:common-utils:jar:5.2.0-SNAPSHOT, io.confluent:assembly-plugin-boilerplate:zip:resources:5.2.0-SNAPSHOT: Failure to find io.confluent:common-utils:jar:5.2.0-SNAPSHOT in http://packages.confluent.io/maven/ was cached in the local repository, resolution will not be reattempted until the update interval of confluent has elapsed or updates are forced -> [Help 1]

Start in the repository's parent folder by reproducing `mvn -pl :common-config package` and inspect how `common-config` resolves `common-utils` and `assembly-plugin-boilerplate`. Confirm the build no longer fails with unresolved 5.2.0-SNAPSHOT dependencies and that the package command completes successfully.

Written by the indexing model from the issue text.