Upgrade gems, use github actions and improve codebase

.github/workflows/testing.yml

@@ -0,0 +1,28 @@
+name: Testing
+
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+  checks: write
+
+jobs:
+  test:
+    name: Running tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: .ruby-version
+          bundler-cache: true
+
+      - name: Run tests
+        run: bundle exec rake

.rubocop.yml

@@ -1,11 +1,15 @@
-require: rubocop-rspec
+plugins:
+  - rubocop-rake
+  - rubocop-rspec
+  - rubocop-rspec_rails
 
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 3.2
   Exclude:
     - "spec/dummy/**/*"
     - "spec/spec_helper.rb"
+    - "vendor/**/*"
 
 Style/StringLiterals:
   Enabled: true

.ruby-version

@@ -0,0 +1 @@
+3.4.5

Gemfile

@@ -5,9 +5,11 @@ source "https://rubygems.org"
 # Specify your gem's dependencies in gamora.gemspec
 gemspec
 
-gem "rake", "~> 13.2"
-gem "rspec-rails", "~> 6.1"
-gem "rubocop", "~> 1.65"
-gem "rubocop-rspec", "~> 3.0", require: false
-gem "sqlite3", "~> 1.7"
-gem "webmock", "~> 3.23"
+gem "rake", "~> 13.3"
+gem "rspec-rails", "~> 8.0"
+gem "rubocop", "~> 1.80"
+gem "rubocop-rake", require: false
+gem "rubocop-rspec", require: false
+gem "rubocop-rspec_rails", require: false
+gem "sqlite3", "~> 2.7"
+gem "webmock", "~> 3.25"