DEV: uses onebox 2.2.12 (#12671)

DEV: uses onebox 2.2.12 (#12671)

diff --git a/Gemfile.lock b/Gemfile.lock
index 2b5515a..7c2c011 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -268,7 +268,7 @@ GEM
     omniauth-twitter (1.4.0)
       omniauth-oauth (~> 1.1)
       rack
-    onebox (2.2.11)
+    onebox (2.2.12)
       addressable (~> 2.7.0)
       htmlentities (~> 4.3)
       multi_json (~> 1.11)

GitHub sha: 094c9e5e

This commit appears in #12671 which was approved by davidtaylorhq. It was merged by jjaffeux.