Merge pull request #1172 from firebase/dpebot-repositorygardener

Auto-update dependencies.

Author: morganchen12

Gemfile.lock

@@ -19,7 +19,7 @@ GEM
       httpclient (~> 2.8, >= 2.8.3)
       json (>= 1.5.1)
     atomos (0.1.3)
-    base64 (0.1.1)
+    base64 (0.2.0)
     bigdecimal (3.1.4)
     claide (1.1.0)
     cocoapods (1.14.2)
@@ -62,7 +62,7 @@ GEM
     colored2 (3.1.2)
     concurrent-ruby (1.2.2)
     connection_pool (2.4.1)
-    drb (2.1.1)
+    drb (2.2.0)
       ruby2_keywords
     escape (0.0.4)
     ethon (0.16.0)
@@ -77,7 +77,7 @@ GEM
     json (2.6.3)
     minitest (5.20.0)
     molinillo (0.8.0)
-    mutex_m (0.1.2)
+    mutex_m (0.2.0)
     nanaimo (0.3.0)
     nap (1.1.0)
     netrc (0.11.0)