Add CI workflow

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,5 @@
+**Description**
+
+Replace this text with a discription of the changes in this PR.
+
+-----------------

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+
+  pull_request:
+
+jobs:
+  test:
+    name: Test failing spec detector
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.2
+          bundler-cache: true
+      - name: Lint  files
+        run: bundle exec rake rubocop
+      - name: Run tests
+        run: bundle exec rake spec

Gemfile.lock

@@ -55,6 +55,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-21
+  x86_64-linux
 
 DEPENDENCIES
   bundler

Rakefile

@@ -1,8 +1,14 @@
 require "bundler/gem_tasks"
 require "rspec/core/rake_task"
+require 'rubocop/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
 
 import './lib/tasks/failing_spec_detector/print_log.rake'
 
-task :default => :spec
+task default: %i[
+  spec
+  rubocop
+]
+
+RuboCop::RakeTask.new