Adopt compatibility kit 20 (#1795)

* bump dev dependency

* drop feature part from ndjson path

Author: davidjgoss

compatibility/support/shared_examples.rb

@@ -12,7 +12,7 @@
 
   let(:cck_path) { CCK::Examples.feature_code_for(example) }
 
-  let(:parsed_original) { parse_ndjson_file("#{cck_path}/#{example}.feature.ndjson") }
+  let(:parsed_original) { parse_ndjson_file("#{cck_path}/#{example}.ndjson") }
   let(:parsed_generated) { parse_ndjson(messages) }
 
   let(:original_messages_types) { parsed_original.map { |msg| message_type(msg) } }

cucumber.gemspec

@@ -35,7 +35,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'multi_test', '~> 1.1'
   s.add_dependency 'sys-uname', '~> 1.3'
 
-  s.add_development_dependency 'cucumber-compatibility-kit', '~> 19.0'
+  s.add_development_dependency 'cucumber-compatibility-kit', '~> 20.0'
   # Only needed whilst we are testing the formatters. Can be removed once we remove tests for those
   s.add_development_dependency 'nokogiri', '~> 1.15'
   s.add_development_dependency 'rake', '~> 13.2'