ubuntu.yml in yao-0.9.0

- old
+ new

@@ -11,10 +11,10 @@
     steps:
     - uses: actions/checkout@master
     - name: Set up Ruby
       uses: actions/setup-ruby@v1
       with:
-        version: ${{ matrix.ruby }}
+        ruby-version: ${{ matrix.ruby }}
     - name: Install dependencies
       run: |
         gem install bundler --no-document
         bundle install
     - name: Run test