change friendly_id to 5.1:0

refinerycms-news.gemspec

@@ -16,5 +16,5 @@ Gem::Specification.new do |s|
 
   s.add_dependency    'refinerycms-core',     '~> 3.0.0'
   s.add_dependency    'refinerycms-settings', '~> 3.0.0'
-  s.add_dependency    'friendly_id',          '~> 5.2.0'
+  s.add_dependency    'friendly_id',          '~> 5.1.0'
 end