Merge pull request #784 from github/dependabot/bundler/faraday-0.15.4

Author: dependabot[bot]

Gemfile.lock

@@ -26,7 +26,7 @@ GEM
       ffi (>= 1.3.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
-    faraday (0.15.3)
+    faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.25)
     forwardable-extended (2.6.0)