Fix GitHub Actions for Jekyll 4.x (#1276)

.github/workflows/ci.yml

@@ -6,10 +6,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Build the site in the jekyll/builder container
-        run: |
-          export JEKYLL_VERSION=3.8
-          docker run \
-          -v ${{ github.workspace }}:/srv/jekyll -v ${{ github.workspace }}/_site:/srv/jekyll/_site \
-          -e PAGES_REPO_NWO=${{ github.repository }} \
-          jekyll/builder:$JEKYLL_VERSION /bin/bash -c "chmod 777 /srv/jekyll && jekyll build --future"
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.3'
+      - name: Install dependencies
+        run: bundle install && bundle exec appraisal install
+      - name: Build site
+        run: bundle exec appraisal jekyll build --future

Appraisals

@@ -0,0 +1,6 @@
+appraise "jekyll-3" do
+  gem "jekyll", "3.9.4"
+end
+appraise "jekyll-4" do
+  gem "jekyll", "4.3.3"
+end

beautiful-jekyll-theme.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
     "documentation_uri" => "https://github.com/daattali/beautiful-jekyll#readme"
   }
 
-  spec.add_runtime_dependency "jekyll", "~> 3.9.3"
+  spec.add_runtime_dependency "jekyll", ">= 3.9.3"
   spec.add_runtime_dependency "jekyll-paginate", "~> 1.1"
   spec.add_runtime_dependency "jekyll-sitemap", "~> 1.4"
   spec.add_runtime_dependency "kramdown-parser-gfm", "~> 1.1"
@@ -26,4 +26,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", ">= 1.16"
   spec.add_development_dependency "rake", "~> 12.0"
+  spec.add_development_dependency "appraisal", "~> 2.5"
 end