ci.yml in stylegen-0.5.0

- old
+ new

@@ -1,26 +1,27 @@
 name: CI
-
 on:
   push:
-    branches: "*"
+    branches:
+      - master
   pull_request:
-    branches: "*"
+    branches:
+      - master
 
 jobs:
   test:
-
     runs-on: ubuntu-latest
     strategy:
       matrix:
         ruby-version:
           - "2.5"
           - "2.6"
           - "2.7"
           - "3.0"
+          - "3.1"
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby-version }}
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically