hg: jmc/jmc: JMC-6395: update jetty-maven-plugin from org.morbay.jetty to org.eclipse.jetty

[guru.hb at oracle.com]

Changeset: a43fa230b1bb
Author:    ghb <guru.hb at oracle.com>
Date:      2019-04-09 18:21 +0530
URL:       http://hg.openjdk.java.net/jmc/jmc/rev/a43fa230b1bb

JMC-6395: update jetty-maven-plugin from org.morbay.jetty to org.eclipse.jetty
Reviewed-by: hirt <marcus at hirt.se>

! releng/third-party/pom.xml