RHPAM Maven repo: drools-ha POM invalid according to XSD

The POM for artifact org.drools:drools-ha is missing the namespace declaration for the element project, XSD validator output:

cvc-elt.1.a: Cannot find the declaration of element 'project'.

Please add a namespace declaration, such as in [1].

[1] https://github.com/kiegroup/droolsjbpm-build-bootstrap/blob/master/pom.xml#L2