Switch standalone bazel build to 3.3.0-SNAPSHOT api

Change-Id: Id323642604d6e8be54ba738579aa0d65fe5efa22

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 56b3c97..4c74b7c 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -12,4 +12,4 @@
     "gerrit_api",
 )
 
-gerrit_api()
+gerrit_api(version = "3.3.0-SNAPSHOT")