Updated ruby version

Dockerfile

@@ -1,6 +1,10 @@
 # syntax=docker/dockerfile:1
-FROM ruby:2.7.8
-RUN apt-get update -qq && apt-get install -y nodejs
+FROM ruby:4.0.0-slim
+RUN apt-get update -qq && apt-get install -y \
+    nodejs \
+    build-essential \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/*
 # Create a non-root user and group
 RUN groupadd -r appuser && useradd -r -g appuser appuser
 WORKDIR /app

Gemfile

@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '3.1.4'
+ruby '4.0.0'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 7.1', '>= 7.1.5.1'
@@ -20,7 +20,7 @@ gem 'coffee-rails', '~> 5.0'
 # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
 gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 2.12'
+gem 'jbuilder', '~> 2.14'
 # Use Redis adapter to run Action Cable in production
 # gem 'redis', '~> 4.0'
 # Use ActiveModel has_secure_password
@@ -56,7 +56,7 @@ end
 group :test do
   # Adds support for Capybara system testing and selenium driver
   gem 'capybara', '>= 3.40'
-  gem 'selenium-webdriver', '>= 4.21.1'
+  gem 'selenium-webdriver', '>= 4.31.0'
   # Easy installation and use of chromedriver to run system tests with Chrome
   gem 'chromedriver-helper'
 end