Updating orbit update site to 2019-06 RC2a
Updating orbit update site to 2019-06 RC2a

Signed-off-by: Ondrej Dockal <2dad77be51d1e937b0c01e3c4f9b0cc5dc8d3df1@redhat.com>

jboss-reddeer/reddeer,jboss-reddeer/reddeer