Update ci.yml

Author: toshimaru

.github/workflows/ci.yml

@@ -69,6 +69,7 @@ jobs:
           for version in $(echo "${{ matrix.build-rails-versions }}" | tr ',' ' '); do
             git fetch --depth=1 origin refs/tags/v${version}*:refs/tags/v${version}*
           done
+      - run: sudo apt-get install -q libedit2
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby-version }}