Merge pull request activeadmin#148 from activeadmin/dependabot/bundler/rack-2.0.8

Bump rack from 2.0.7 to 2.0.8

Author: grzegorz-jakubiak

Gemfile.lock

@@ -180,7 +180,7 @@ GEM
     pry-rails (0.3.8)
       pry (>= 0.10.4)
     public_suffix (3.0.3)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)