update to Ruby 4.0.3

Author: yzytom

.ruby-version

@@ -1 +1 @@
-3.4.8
+4.0.3

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:4.0.2
+FROM ruby:4.0.3
 ENV LANG=C.UTF-8
 ENV ENABLE_SERVICE_WORKER=true
 

Dockerfile-alpine

@@ -1,4 +1,4 @@
-FROM ruby:4.0.2-alpine
+FROM ruby:4.0.3-alpine
 
 ENV LANG=C.UTF-8
 ENV ENABLE_SERVICE_WORKER=true

Gemfile

@@ -1,8 +1,9 @@
 source 'https://rubygems.org'
-ruby '4.0.2'
+ruby '4.0.3'
 
 gem 'activesupport', require: false
-gem 'html-pipeline'
+gem 'html-pipeline', '~> 2.14'
+gem 'ostruct'
 gem 'nokogiri'
 gem 'rake'
 gem 'terminal-table'
@@ -21,7 +22,7 @@ group :app do
   gem 'rack'
   gem 'rss'
   gem 'sinatra-contrib'
-  gem 'sinatra', '~> 3.2'
+  gem 'sinatra'
   gem 'sprockets-helpers'
   gem 'sprockets'
   gem 'thin'
@@ -55,3 +56,5 @@ if ENV['SELENIUM'] == '1'
   gem 'capybara'
   gem 'selenium-webdriver'
 end
+
+gem "webrick", "~> 1.9"

Gemfile.lock

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
+
 module Docs
-  class Filter 
+  class Filter < ::HTML::Pipeline::Filter
     def css(*args)
       doc.css(*args)
     end

lib/docs/core/filter.rb

@@ -1,5 +1,6 @@
 require_relative '../../../../test_helper'
 require_relative '../../../../../lib/docs'
+require 'ostruct'
 
 class ImagesFilterTest < Minitest::Spec
   include FilterTestHelper