Chirpy Jekyll Theme: fix undefined method `tainted?`

Ruby 3.2 버젼에서 나타는 오류로 보이며 blog 빌드시 3.1 버젼으로 제안하는 것으로 오류를 해결 할 수 있는것으로 보인다.

Error Message

Liquid Exception: undefined method `tainted?' for "h_":String in /home/runner/work/username.github.io/username.github.io/vendor/bundle/ruby/3.2.0/gems/jekyll-theme-chirpy-5.3.2/_layouts/categories.html
                    ------------------------------------------------
      Jekyll 4.3.1   Please append `--trace` to the `build` command 
                     for any additional information or backtrace. 
                    ------------------------------------------------

Solution

- name: Setup Ruby
  uses: ruby/setup-ruby@v1
  with:
    ruby-version: 3.1 # <- change ruby-version from 3 to 3.1
    bundler-cache: true

Reference

• Issue: undefined method tainted?