Organize benchmark gems in a group

Inspired by ruby/json#606

Author: stefannibrasil

.github/workflows/ruby.yml

@@ -53,7 +53,9 @@ jobs:
         ruby-version: ${{ matrix.ruby }}
 
     - name: Install dependencies
-      run: bundle install
+      run: |
+        bundle config --without benchmark
+        bundle install
 
     - name: Run tests
       run: bundle exec rake test

Gemfile

@@ -5,7 +5,6 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in faker.gemspec
 gemspec
 
-gem 'benchmark'
 gem 'irb'
 gem 'minitest', '5.26.1'
 gem 'pry', '0.16.0'
@@ -18,3 +17,8 @@ gem 'simplecov', '0.22.0'
 gem 'test-unit', '3.7.7'
 gem 'timecop', '0.9.10'
 gem 'yard', '0.9.38'
+
+group :benchmark do
+  gem 'benchmark'
+  gem 'benchmark-ips'
+end

Gemfile.lock

@@ -9,6 +9,7 @@ GEM
   specs:
     ast (2.4.3)
     benchmark (0.5.0)
+    benchmark-ips (2.14.0)
     coderay (1.1.3)
     concurrent-ruby (1.3.6)
     date (3.5.1)
@@ -96,6 +97,7 @@ PLATFORMS
 
 DEPENDENCIES
   benchmark
+  benchmark-ips
   faker!
   irb
   minitest (= 5.26.1)