Update ruby to v3.4.2

.tool-versions

-ruby 3.3.6
+ruby 3.4.2

Dockerfile

@@ -2,7 +2,7 @@
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
 # renovate: datasource=docker depName=registry.docker.com/library/ruby
-ARG RUBY_VERSION=3.3.6
+ARG RUBY_VERSION=3.4.2
 FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim AS base
 
 # Rails app lives here

Gemfile

 source "https://rubygems.org"
 
-ruby "3.3.6"
+ruby "3.4.2"
 
 gem "rails", "~> 8.0.1"
 

Gemfile.lock

@@ -353,7 +353,7 @@ DEPENDENCIES
   web-console (> 0)
 
 RUBY VERSION
-   ruby 3.3.6p108
+   ruby 3.4.2p28
 
 BUNDLED WITH
    2.6.2