ci.yml in bundled_gems-1.0.0

- old
+ new

@@ -1,25 +1,26 @@
 name: Ruby Test
-on: [push]
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
 jobs:
   build:
     strategy:
       matrix:
-        ruby: [2.4, 2.5, 2.6, 2.7]
+        ruby: ['2.6', '2.7', '3.0', '3.1']
         os: [ubuntu-latest, macos-latest]
-
     runs-on: ${{ matrix.os }}
-
     steps:
     - uses: actions/checkout@v2
     - name: Set up Ruby ${{ matrix.ruby }}
-      uses: eregon/use-ruby-action@master
+      uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
-    - name: Install gems
-      run: |
-        gem install bundler --force --no-document
-        bundle install --jobs 4 --retry 3
+        bundler-cache: true
     - run: bundle exec rake
     - run: bundle exec rubocop
     - run: ./bin/bgem
     - run: ./bin/bgem list
     - run: ./bin/bgem install rake