Merge pull request #1766 from firebase/dpebot-repositorygardener

Auto-update dependencies.

Author: ncooke3

Gemfile.lock

@@ -80,7 +80,7 @@ GEM
       mutex_m
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    json (2.14.1)
+    json (2.15.0)
     logger (1.7.0)
     minitest (5.25.5)
     molinillo (0.8.0)