Also consume 2.10.6 API version in buck build

Change-Id: I0e177dcddf38f1023031eeb5421d2d68e44f697f
diff --git a/lib/gerrit/BUCK b/lib/gerrit/BUCK
index 247b081..8762c78 100644
--- a/lib/gerrit/BUCK
+++ b/lib/gerrit/BUCK
@@ -1,6 +1,6 @@
 include_defs('//bucklets/maven_jar.bucklet')
 
-VER = '2.10'
+VER = '2.10.6'
 REPO = MAVEN_LOCAL
 
 maven_jar(