Fix hawkular & prometheus fetch from brew

[luck3y]

https://issues.jboss.org/browse/CLOUD-3377
Signed-off-by: Ken Wills <kwills@redhat.com

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[luck3y]

Note this is a stable patch for EAP 7.2.x and images based on that, hawkular is gone from master, and prometheus is already fixed in master.