Drop support for Cucumber 4 through 7

- Update dependency specification
- Remove obsolete appraisals
- Update GitHub actions to run with supported Cucumber versoins
- Update README to indicate supported Cucumber versions

.github/workflows/ruby.yml

@@ -27,13 +27,11 @@ jobs:
         appraisal: [cucumber_8, cucumber_9]
         include:
           - ruby: "2.6"
-            appraisal: cucumber_4
-          - ruby: "2.7"
-            appraisal: cucumber_5
+            appraisal: cucumber_8
           - ruby: "2.7"
-            appraisal: cucumber_6
+            appraisal: cucumber_8
           - ruby: "3.0"
-            appraisal: cucumber_7
+            appraisal: cucumber_8
           - ruby: "jruby-9.3"
             appraisal: cucumber_8
 

Appraisals

@@ -1,21 +1,5 @@
 # frozen_string_literal: true
 
-appraise "cucumber_4" do
-  gem "cucumber", "~> 4.0"
-end
-
-appraise "cucumber_5" do
-  gem "cucumber", "~> 5.0"
-end
-
-appraise "cucumber_6" do
-  gem "cucumber", "~> 6.0"
-end
-
-appraise "cucumber_7" do
-  gem "cucumber", "~> 7.0"
-end
-
 appraise "cucumber_8" do
   gem "cucumber", "~> 8.0"
 end

README.md

@@ -82,7 +82,7 @@ Aruba is supported on Ruby 2.6 and up, and tested against CRuby 2.6, 2.7, 3.0,
 
 ## Supported Cucumber versions
 
-Aruba is supported on and tested with Cucumber versions 4 through 9.
+Aruba is supported on and tested with Cucumber versions 8 and 9.
 
 ## Supported operating systems
 

aruba.gemspec

@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency "bundler", [">= 1.17", "< 3.0"]
   spec.add_runtime_dependency "contracts", [">= 0.16.0", "< 0.18.0"]
-  spec.add_runtime_dependency "cucumber", ">= 4.0", "< 10.0"
+  spec.add_runtime_dependency "cucumber", ">= 8.0", "< 10.0"
   spec.add_runtime_dependency "rspec-expectations", "~> 3.4"
   spec.add_runtime_dependency "thor", "~> 1.0"