Swap WebRick for Puma.

Author: dblock

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2025-10-01 12:19:57 UTC using RuboCop version 1.81.1.
+# on 2025-10-01 12:27:12 UTC using RuboCop version 1.81.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new

Gemfile

@@ -10,12 +10,12 @@ gem 'mongoid-scroll'
 gem 'newrelic_rpm'
 gem 'newrelic-slack-ruby-bot'
 gem 'ostruct'
+gem 'puma'
 gem 'rack'
 gem 'rack-robotz'
 gem 'rack-server-pages'
 gem 'slack-ruby-bot-server-mailchimp'
 gem 'slack-ruby-bot-server-rtm'
-gem 'webrick'
 
 group :development, :test do
   gem 'foreman'

Gemfile.lock

@@ -189,6 +189,7 @@ GEM
       newrelic_rpm
       slack-ruby-bot (>= 0.10.5)
     newrelic_rpm (9.21.0)
+    nio4r (2.7.4)
     nokogiri (1.18.10-aarch64-linux-gnu)
       racc (~> 1.4)
     nokogiri (1.18.10-aarch64-linux-musl)
@@ -218,6 +219,8 @@ GEM
       date
       stringio
     public_suffix (6.0.2)
+    puma (7.0.4)
+      nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.2.1)
     rack-cors (3.0.0)
@@ -348,7 +351,6 @@ GEM
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
-    webrick (1.9.1)
     websocket (1.2.11)
     websocket-driver (0.7.7)
       base64
@@ -385,6 +387,7 @@ DEPENDENCIES
   newrelic-slack-ruby-bot
   newrelic_rpm
   ostruct
+  puma
   rack
   rack-robotz
   rack-server-pages
@@ -401,7 +404,6 @@ DEPENDENCIES
   slack-ruby-bot-server-rtm
   vcr
   webmock
-  webrick
 
 RUBY VERSION
    ruby 3.4.6p54

Procfile

@@ -1 +1 @@
-web: bundle exec unicorn -p $PORT
+web: bundle exec puma -p $PORT

spec/support/capybara.rb

@@ -3,5 +3,5 @@
 Capybara.configure do |config|
   config.app = Api::Middleware.instance
   config.server_port = 9293
-  config.server = :webrick
+  config.server = :puma
 end