SAK-25481 update basiclti 2.1.x branch to 2.1.3-SNAPSHOT, update entitybroker dep to 1.5.4-SNAPSHOT

git-svn-id: https://source.sakaiproject.org/svn/basiclti/branches/basiclti-2.1.x@132817 66ffb92e-73f9-0310-93c1-f5514f145a0a