Merge pull request #2483 from alphagov/dependabot/bundler/plek-5.3.0

Author: govuk-ci

Gemfile.lock

@@ -509,7 +509,7 @@ GEM
       hashery (~> 2.0)
       ruby-rc4
       ttfunk
-    plek (5.2.2)
+    plek (5.3.0)
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)