Update dependency gitlab-dangerfiles to '~> 3.13.0'

Gemfile

@@ -6,5 +6,5 @@ group :development, :test do
 end
 
 group :development, :danger do
-  gem 'gitlab-dangerfiles', '~> 3.12.0'
+  gem 'gitlab-dangerfiles', '~> 3.13.0'
 end

Gemfile.lock

 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.4)
+    addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
     claide (1.1.0)
     claide-plugins (0.9.2)
@@ -59,7 +59,7 @@ GEM
     gitlab (4.19.0)
       httparty (~> 0.20)
       terminal-table (>= 1.5.1)
-    gitlab-dangerfiles (3.12.0)
+    gitlab-dangerfiles (3.13.0)
       danger (>= 8.4.5)
       danger-gitlab (>= 8.0.0)
       rake
@@ -82,7 +82,7 @@ GEM
     public_suffix (4.0.7)
     rake (13.0.6)
     rchardet (1.8.0)
-    rexml (3.2.5)
+    rexml (3.2.6)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -109,9 +109,9 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  gitlab-dangerfiles (~> 3.12.0)
+  gitlab-dangerfiles (~> 3.13.0)
   rspec (~> 3.12.0)
   webrick (~> 1.8, >= 1.8.1)
 
 BUNDLED WITH
-   2.4.16
+   2.4.18