Cayenne 3.0.2 artifacts 😅

Hello everybody,

I am trying to win the quest for the most weird question, so let me give it
a try.

I am trying to rebuild a VERY old application of mine (still smoothly
running) because I would need to update how we do send metrics to DataDog.

This application is Cayenne 3.0.2 old.

Unfortunately it looks like the artifact
`org.apache.cayenne.plugins:maven-cayenne-plugin:3.0.2` (or any other
version) is no longer available in the default Maven repository.
It seems like its artifactID has been renamed to  `cayenne-maven-plugin`,
but this is only available for Cayenne 4.*

I have also tried to upgrade to 3.1.3, but there are too many differences,
and I would really love to avoid starting messing with this codebase.

Do you have any suggestions on where to get this missing artifact?

Cheers,

Giulio Cesare