Merge pull request #30 from np-complete/renovate/rake-13.x-lockfile

Update dependency rake to v13.1.0

Author: masarakki

Gemfile.lock

@@ -4,7 +4,7 @@ GEM
     image_size (2.1.2)
     md2review (1.12.1)
       redcarpet (> 2.0.0)
-    rake (13.0.6)
+    rake (13.1.0)
     redcarpet (3.5.1)
     review (2.5.0)
       image_size