Fix Maven Repository URL
Fix Maven Repository URL

The used version of the gerrit-plugin-api jar is now a release version
(2.5-rc0). It is not available in the snapshot Maven repository [1] but
in the release Maven repository [2].

[1] https://gerrit-api.commondatastorage.googleapis.com/snapshot/
[2] https://gerrit-api.commondatastorage.googleapis.com/release/

Change-Id: I77a11567d601dc3ec308383810f97a9b232f5b70
Signed-off-by: Edwin Kempin <b444e279ad95fdef4fbdd82c813b624595df204a@sap.com>

GerritCodeReview/plugins_replication,qtproject/qtqa-gerrit-plugin-replication