Fix Gemfile.lock for the octokit update

MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8158 updated
the octokit Gem but did not include all the changes for Gemfile.lock.

Gemfile.lock

@@ -420,7 +420,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    octokit (4.3.0)
+    octokit (4.6.2)
       sawyer (~> 0.8.0, >= 0.5.3)
     oj (2.17.4)
     omniauth (1.3.1)
@@ -652,7 +652,7 @@ GEM
       tilt (>= 1.1, < 3)
     sawyer (0.8.1)
       addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 0.10)
+      faraday (~> 0.8, < 1.0)
     scss_lint (0.47.1)
       rake (>= 0.9, < 11)
       sass (~> 3.4.15)
@@ -895,7 +895,7 @@ DEPENDENCIES
   newrelic_rpm (~> 3.16)
   nokogiri (~> 1.6.7, >= 1.6.7.2)
   oauth2 (~> 1.2.0)
-  octokit (~> 4.3.0)
+  octokit (~> 4.6.2)
   oj (~> 2.17.4)
   omniauth (~> 1.3.1)
   omniauth-auth0 (~> 1.4.1)