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 <edwin.kempin@sap.com>
diff --git a/pom.xml b/pom.xml
index 58d99e5..5b36bd0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,7 +86,7 @@
   <repositories>
     <repository>
       <id>gerrit-api-repository</id>
-      <url>https://gerrit-api.commondatastorage.googleapis.com/snapshot/</url>
+      <url>https://gerrit-api.commondatastorage.googleapis.com/release/</url>
     </repository>
   </repositories>
 </project>