Update rake

Author: mrcasals

Gemfile.lock

@@ -465,7 +465,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.0.0)
+    rake (13.0.1)
     ransack (2.1.1)
       actionpack (>= 5.0)
       activerecord (>= 5.0)
@@ -573,7 +573,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.12)
   decidim-deploy-heroku!
-  rake (~> 12.0.0)
+  rake (~> 13.0.0)
   rspec (~> 3.0)
 
 BUNDLED WITH

decidim-deploy-heroku.gemspec

@@ -22,6 +22,6 @@ Gem::Specification.new do |spec|
   spec.add_dependency "decidim", "~> 0.1"
 
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 12.0.0"
+  spec.add_development_dependency "rake", "~> 13.0.0"
   spec.add_development_dependency "rspec", "~> 3.0"
 end