ruby.yml in ethon-0.16.0

- old
+ new

@@ -18,20 +18,20 @@
     runs-on: ${{ matrix.os }}-latest
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu, macos]
-        ruby-version: [2.5, 2.6, 2.7, 3.0, head, debug, truffleruby, truffleruby-head]
+        ruby-version: [2.5, 2.6, 2.7, 3.0, head, debug, truffleruby]
     continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug' }}
     steps:
     - uses: actions/checkout@v2
     - name: Install libcurl header
       run: |
         if ${{ matrix.os == 'macos' }}
         then
           brew install curl
         else
-          sudo apt install -y libcurl4-openssl-dev
+          sudo apt update && sudo apt install -y --no-install-recommends libcurl4-openssl-dev
         fi
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby-version }}