ci.yml in minitest-spec-rails-6.0.4

- old
+ new

@@ -16,10 +16,10 @@
       - name: Checkout
         uses: actions/checkout@v1
       - name: Setup System
         run: |
           sudo apt-get install libsqlite3-dev
-          echo "::set-env name=MTSR_RAILS_VERSION::${{ matrix.rails }}"
+          echo "MTSR_RAILS_VERSION=${{ matrix.rails }}" >> $GITHUB_ENV
       - name: Setup Ruby
         uses: actions/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
       - name: Bundle