Remove redundant Install Dependencies step

bundler-cache: true already handles bundle install automatically

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: bits-bytes-nn

.github/workflows/jekyll.yml

@@ -29,10 +29,6 @@ jobs:
         with:
           ruby-version: '3.2'
           bundler-cache: true
-      - name: Install Dependencies
-        run: |
-          rm -f Gemfile.lock
-          bundle install --jobs 4 --retry 3
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v5