Update project to Ruby 3.2

.ruby-version

@@ -1 +1 @@
-3.1.3
+3.2.0

CONTRIBUTING.md

@@ -11,7 +11,7 @@ I definitely appreciate your interest in (and help improving) micromicro.cc. Tha
 
 ## Setup
 
-micromicro.cc is written in [Ruby](https://www.ruby-lang.org) (version 3.1.3) and uses the [Bundler](https://bundler.io) gem to manage Ruby dependencies. Local development is done within a [Docker](https://docker.com) container running a custom-built image.
+micromicro.cc is written in [Ruby](https://www.ruby-lang.org) (version 3.2.0) and uses the [Bundler](https://bundler.io) gem to manage Ruby dependencies. Local development is done within a [Docker](https://docker.com) container running a custom-built image.
 
 To get started, install the version of [Docker Desktop](https://www.docker.com/products/docker-desktop/) that's most appropriate for your system. With Docker Desktop installed and running, open a Terminal window and `cd` to your checked out copy of the application and run:
 

Dockerfile

@@ -1,7 +1,7 @@
 ################################################################################
 # Base Stage
 ################################################################################
-FROM ruby:3.1.3-alpine3.17 AS base-stage
+FROM ruby:3.2.0-alpine3.17 AS base-stage
 
 ENV BUNDLE_JOBS=10 \
     BUNDLE_RETRIES=5
@@ -51,8 +51,8 @@ COPY Gemfile Gemfile.lock ./
 
 RUN bundle install \
     && bundle clean --force \
-    && rm -rf vendor/bundle/ruby/3.1.0/cache/*.gem \
-    && find vendor/bundle/ruby/3.1.0/gems/ \( -name "*.c" -o -name "*.o" \) -delete
+    && rm -rf vendor/bundle/ruby/3.2.0/cache/*.gem \
+    && find vendor/bundle/ruby/3.2.0/gems/ \( -name "*.c" -o -name "*.o" \) -delete
 
 COPY . .
 

Gemfile

@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-ruby '3.1.3'
+ruby '3.2.0'
 
 gem 'http'
 gem 'micromicro'

Gemfile.lock

@@ -190,7 +190,7 @@ DEPENDENCIES
   webmock
 
 RUBY VERSION
-   ruby 3.1.3p185
+   ruby 3.2.0p0
 
 BUNDLED WITH
-   2.3.26
+   2.4.1