(maint) Update uberjar-name for pe-puppetserver
(maint) Update uberjar-name for pe-puppetserver

In the rename from jvm-puppet to puppetserver, the uberjar was
neglected. This commit updates the uberjar-name to
puppet-server-release, which matches the name of the puppet-server
uberjar.

puppetlabs/ezbake,puppetlabs/ezbake,puppetlabs/ezbake