Add a workflow for CI on Github

Travis CI doesn't appear to be configured/working, possibly Github
actions would be a good fit for this.

- Adds a workflow that runs rspec for ruby 2.6, 2.7 and 3.0.

- Updates the build status badge.

Author: DanMegaGamer

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
+# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
+
+name: rspec
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby-version: ["2.6", "2.7", "3.0"]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        # uses: ruby/setup-ruby@55283cc23133118229fd3f97f9336ee23a179fcf # v1.146.0
+        with:
+          ruby-version: ${{ matrix.ruby-version }}
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - name: Run tests
+        run: bundle exec rspec

.travis.yml

@@ -1,7 +1,7 @@
 capybara-screenshot gem
 =======================
 
-[![Build Status](https://travis-ci.org/mattheworiordan/capybara-screenshot.svg)](https://travis-ci.org/mattheworiordan/capybara-screenshot)
+[![Build Status](https://github.com/mattheworiordan/capybara-screenshot/actions/workflows/ci.yml/badge.svg)](https://github.com/mattheworiordan/capybara-screenshot/actions/workflows/ci.yml)
 [![Code Climate](https://d3s6mut3hikguw.cloudfront.net/github/mattheworiordan/capybara-screenshot.svg)](https://codeclimate.com/github/mattheworiordan/capybara-screenshot)
 [![Gem Version](https://badge.fury.io/rb/capybara-screenshot.svg)](http://badge.fury.io/rb/capybara-screenshot)
 
@@ -319,7 +319,7 @@ Please raise an issue at [https://github.com/mattheworiordan/capybara-screenshot
 
 #### Contributions
 
-Contributions are welcome.  Please fork this gem and then submit a pull request.  New features must include test coverage and must pass on all versions of the testing frameworks supported.  Run `appraisal` to set up the your Gems. then `appraisal "rake travis:ci"` locally to test your changes against all versions of testing framework gems supported.
+Contributions are welcome.  Please fork this gem and then submit a pull request.  New features must include test coverage and must pass on all versions of the testing frameworks supported.  Run `appraisal` to set up the your Gems. then `appraisal "rspec"` locally to test your changes against all versions of testing framework gems supported.
 
 #### Rubygems
 

README.md

@@ -1,40 +1,6 @@
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
 Bundler::GemHelper.install_tasks
 
-require 'rspec/core/rake_task'
-
-rspec_rake_task = RSpec::Core::RakeTask.new(:spec)
-
-task default: [:spec]
-
-def target_gem
-  gem_file = ENV['BUNDLE_GEMFILE'] || ''
-  targets = %w(cucumber spinach rspec)
-
-  target = gem_file.match(/(#{targets.join('|')})/)
-  if target && targets.include?(target[1])
-    target[1].to_sym
-  else
-    []
-  end
-end
-
-namespace :travis do
-  task :ci => target_gem do
-    Rake::Task['spec'].invoke
-  end
-
-  task :cucumber do
-    rspec_rake_task.pattern = 'spec/cucumber'
-  end
-
-  task :spinach do
-    rspec_rake_task.pattern = 'spec/spinach'
-  end
-
-  task :rspec do
-    rspec_rake_task.pattern = 'spec/rspec'
-  end
-end
+require "rspec/core/rake_task"