Merge pull request #430 from friederbluemle/update-gh-actions

Use ruby/setup-ruby for GH Actions

Author: friederbluemle

.github/workflows/ci.yml

@@ -1,13 +1,15 @@
 name: ci
 on:
   push:
-    branches: '*'
+    branches: [ '*' ]
   pull_request:
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-ruby@v1
-      - run: bundle install
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.2
+          bundler-cache: true
       - run: bundle exec jekyll build

.github/workflows/gh-pages.yml

@@ -1,14 +1,16 @@
 name: gh-pages
 on:
   push:
-    branches: master
+    branches: [ master ]
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-ruby@v1
-      - run: bundle install
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.2
+          bundler-cache: true
       - run: bundle exec jekyll build
       - id: cname
         run: |