Build with API version 2.12

Change-Id: I0fda0e1f7f7e257f06c98a04c7d4b4a152714cb7

lib/gerrit/BUCK

diff --git a/lib/gerrit/BUCK b/lib/gerrit/BUCK
index 19e67dc..88ee169 100644
--- a/lib/gerrit/BUCK
+++ b/lib/gerrit/BUCK
@@ -1,11 +1,12 @@
 include_defs('//bucklets/maven_jar.bucklet')
 
-VER = '2.12-SNAPSHOT'
-REPO = MAVEN_LOCAL
+VER = '2.12'
+REPO = MAVEN_CENTRAL
 
 maven_jar(
   name = 'plugin-api',
   id = 'com.google.gerrit:gerrit-plugin-api:' + VER,
+  sha1 = '8ce1f6e65078bbcf03a1758f96b3ebca19b7fe3c',
   attach_source = False,
   repository = REPO,
   license = 'Apache2.0',