Replace Code Climate with Coveralls for code coverage.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: dblock

.github/workflows/coverage.yml

@@ -10,12 +10,8 @@ jobs:
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: 3.2
-    - uses: amancevice/setup-code-climate@v0
-      with:
-        cc_test_reporter_id: ${{ secrets.CC_TEST_REPORTER_ID }}
-    - run: cc-test-reporter before-build
+        bundler-cache: true
     - name: Build and test with RSpec
-      run: |
-        bundle install --jobs 4 --retry 3
-        bundle exec rspec
-    - run: cc-test-reporter after-build
+      run: bundle exec rspec
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}

Gemfile

@@ -18,5 +18,5 @@ group :development, :test do
 end
 
 group :test do
-  gem 'simplecov', require: false
+  gem 'coveralls_reborn', require: false
 end

spec/spec_helper.rb

@@ -4,8 +4,8 @@
 
 require 'rubygems'
 
-require 'simplecov'
-SimpleCov.start
+require 'coveralls'
+Coveralls.wear!
 
 require 'rspec'
 require 'ruby-enum'