bump database_cleaner

Gemfile

@@ -192,7 +192,7 @@ group :test do
 
   gem 'cucumber', '~> 3.1.0'
   gem 'cucumber-rails', '~> 1.8.0', require: false
-  gem 'database_cleaner', '~> 1.6'
+  gem 'database_cleaner', '~> 1.8'
   gem 'rack_session_access'
   gem 'rspec', '~> 3.9.0'
   gem 'rspec-activemodel-mocks', '~> 1.1.0', git: 'https://github.com/rspec/rspec-activemodel-mocks'

Gemfile.lock

@@ -420,7 +420,7 @@ GEM
       danger-plugin-api (~> 1.0)
     danger-plugin-api (1.0.0)
       danger (> 2.0)
-    database_cleaner (1.7.0)
+    database_cleaner (1.8.3)
     date_validator (0.9.0)
       activemodel
       activesupport
@@ -986,7 +986,7 @@ DEPENDENCIES
   danger (~> 6.3.1)
   danger-brakeman
   dashboards!
-  database_cleaner (~> 1.6)
+  database_cleaner (~> 1.8)
   date_validator (~> 0.9.0)
   deckar01-task_list (= 2.2.0)
   delayed_job_active_record (~> 4.1.4)