Merge pull request #159 from activeadmin/dependabot/bundler/websocket-extensions-0.1.5

Author: dependabot[bot]

Gemfile.lock

@@ -275,7 +275,7 @@ GEM
       rack (>= 2.0.6)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)