chore: workflow 수정

Author: HyunJinNo

.github/workflows/jekyll.yml

@@ -33,6 +33,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Install build dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libffi-dev
       - name: Setup Ruby
         # https://github.com/ruby/setup-ruby/releases/tag/v1.207.0
         uses: ruby/setup-ruby@4a9ddd6f338a97768b8006bf671dfbad383215f4