Merge pull request #517 from alphagov/dependabot/bundler/rack-2.2.14

Author: romaricpascal

Gemfile.lock

@@ -170,7 +170,7 @@ GEM
     prism (1.4.0)
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (2.2.13)
+    rack (2.2.14)
     rack-livereload (0.3.17)
       rack
     rainbow (3.1.1)