Update GitHub Pages gem to fix issue with Ruby versions >= 3.3.0

[zackkrida]

The previous version of the GitHub pages gem, v227, had an issue with the latest version of Ruby (any greater than 3.3.x, or any version using ruby/logger 1.4.3 or greater. See the issue here: jekyll/jekyll#9392). Updating this gem to v232 updates Jekyll to > 3.9.4, where the logger compatibility issue is fixed.

This is a more dependable solution than some alternatives:

• Downgrade my personal Ruby version and enforce a specific version < 3.3.0
• Updating the jekyll gem directly with bundle update jekyll

Testing instructions

1. Checkout this PR and bundle install.
2. Run the site locally with bundle exec jekyll serve --port 4000 --livereload and confirm it matches the production site
3. Bonus, optional: Checkout main, update your Ruby version to something > 3.3.0 (Perhaps with rvm install ruby --latest or rbenv install 3.3.1) and verify that the site fails to run locally with an error message mentioning the @level_override[Fiber.current] configuration.

[zackkrida]

I'm going to go ahead and merge this. @kgodey let me know if for changes like this in the future I should prioritize getting a review and who might be a good reviewer for the website.