Update ember source

Update ember source

diff --git a/Gemfile.lock b/Gemfile.lock
index 02493c5..d6d9207 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
     debug_inspector (0.0.3)
     diff-lcs (1.4.4)
     diffy (3.3.0)
-    discourse-ember-source (3.12.2.1)
+    discourse-ember-source (3.12.2.2)
     discourse_image_optim (0.26.2)
       exifr (~> 1.2, >= 1.2.2)
       fspath (~> 3.0)

GitHub sha: b630fccb