Merge pull request #954 from firebase/dpebot-repositorygardener

Auto-update dependencies.

Author: morganchen12

Gemfile.lock

@@ -56,7 +56,7 @@ GEM
     escape (0.0.4)
     ethon (0.14.0)
       ffi (>= 1.15.0)
-    ffi (1.15.0)
+    ffi (1.15.1)
     fourflusher (2.3.1)
     fuzzy_match (2.0.4)
     gh_inspector (1.1.3)