hg: code-tools/jcstress: Fix xml-maven-plugin version.

[aleksey.shipilev at oracle.com]

Changeset: 2049a7d46a2a
Author:    shade
Date:      2014-02-23 12:45 +0400
URL:       http://hg.openjdk.java.net/code-tools/jcstress/rev/2049a7d46a2a

Fix xml-maven-plugin version.
Contributed-by: Vladimir Sitnikov <sitnikov at netcracker.com>

! tests-custom/pom.xml
! tests-generated/pom.xml