pom: update jglobus library

a bugfix build of jglobus:

Changelog for v2.0.6-rc5.d..v2.0.6-rc6.d
    * [7429aa2] gridftp: Propagate FTP failure reply in client
    * [d734763] fix handling of DN with comma as per rfc1779

Ticket: #8285
Ticket: #8312
Acked-by: Paul Millar
Target: master, 2.9, 2.8, 2.7, 2.6
Require-book: no
Require-notes: yes
(cherry picked from commit 005b7bf391f599b596aadd21982e35e82e64471f)
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Merge pull request #586 from kofemann/new-gjlobus-2.8

New gjlobus 2.8