【GithubActions】長いコマンドを複数行に分割する

ローカルでできるであろう\ではできない。
run > を使う

- name: Convert Environment Identifier
        env:
          ENVIRONMENT_NAME: ${ ENV}
        run: >;
          if [ "${ENVIRONMENT_NAME}" = 'development' ]; then
              echo "::set-output name=AWS_ENVIRONMENT::dev"
							echo "Converted: develop:dev";
            elif [ "${ENVIRONMENT_NAME}" = 'staging' ]; then
              echo "::set-output name=AWS_ENVIRONMENT::stg"
							echo "Converted: release:stg";
            elif [ "${ENVIRONMENT_NAME}" = 'production' ]; then
              echo "::set-output name=AWS_ENVIRONMENT::prd"
							echo "Converted: main:prd";
          else
            exit 1;
          fi
        id: extract_aws_environment