Ruby and gem upgrade

.github/workflows/ci.yaml

@@ -33,15 +33,19 @@ jobs:
     - name: convert notebooks and word docs to posts
       uses: ./_action_files
 
+    - name: Setup Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.3'
+        bundler-cache: true
+
     - name: setup directories for Jekyll build
       run: |
         rm -rf _site
         sudo chmod -R 777 .
 
     - name: Jekyll build
-      uses: docker://jekyll/jekyll:4
-      with:
-        args: bash -c "bundle install && jekyll build -V --strict_front_matter --trace"
+      run: bundle exec jekyll build -V --strict_front_matter --trace
       env:
         JEKYLL_ENV: 'production'
 

Gemfile

@@ -1,4 +1,7 @@
 source "https://rubygems.org"
+
+ruby "~> 3.3.0"
+
 # Hello! This is where you manage which Jekyll version is used to run.
 # When you want to use a different version, change it below, save the
 # file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
@@ -7,37 +10,40 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "~> 4.3.0"
+gem "jekyll", "~> 4.3"
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima"
 # To upgrade, run `bundle update github-pages`.
 # gem "github-pages", group: :jekyll_plugins
 # If you have any plugins, put them here!
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.15"
-  gem 'jekyll-octicons'
-  gem 'jekyll-remote-theme'
-  gem "jekyll-twitter-plugin"
-  gem 'jekyll-relative-links'
-  gem 'jekyll-seo-tag'
-  gem 'jekyll-toc'
-  gem 'jekyll-gist'
-  gem 'jekyll-paginate'
-  gem 'jekyll-sitemap'
+  gem "jekyll-feed", "~> 0.17"
+  gem 'jekyll-octicons', "~> 19.8"
+  gem 'jekyll-remote-theme', "~> 0.4"
+  gem "jekyll-twitter-plugin", "~> 2.1"
+  gem 'jekyll-relative-links', "~> 0.7"
+  gem 'jekyll-seo-tag', "~> 2.8"
+  gem 'jekyll-toc', "~> 0.19"
+  gem 'jekyll-gist', "~> 1.5"
+  gem 'jekyll-paginate', "~> 1.1"
+  gem 'jekyll-sitemap', "~> 1.4"
 end
 
-gem "kramdown-math-katex"
-gem "jemoji"
+gem "kramdown-math-katex", "~> 1.0"
+gem "jemoji", "~> 0.13"
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library.
 install_if -> { RUBY_PLATFORM =~ %r!mingw|mswin|java! } do
-  gem "tzinfo", "~> 1.2"
-  gem "tzinfo-data"
+  gem "tzinfo", "~> 2.0"
+  gem "tzinfo-data", "~> 1.2024"
 end
 
 # Performance-booster for watching directories on Windows
-gem "wdm", "~> 0.1.1", :install_if => Gem.win_platform?
+gem "wdm", "~> 0.2", :install_if => Gem.win_platform?
 
-gem "faraday", "< 1.0"
+gem "nokogiri", "~> 1.18"
+gem "rexml", "~> 3.4"
+gem "activesupport", "~> 7.2"
+gem "faraday", "~> 2.12"