shasum action lint

      - id: download_actionlint
        run: |
          ACTION_LINT_VERSION="fd7ba3c382e13dcc0248e425b4cbc3f1185fa3ee"
          ACTION_LINT_DOWNLOADER_FILE="./actionlint_downloader_${{ github.run_id }}.sh"
          curl -sSfL "https://raw.githubusercontent.com/rhysd/actionlint/${ACTION_LINT_VERSION}/scripts/download-actionlint.bash" > $ACTION_LINT_DOWNLOADER_FILE
          echo "34ef891af1766420574c90e2942f13ac7a12117250a6ed65aaa2f82f21829279  ${ACTION_LINT_DOWNLOADER_FILE}" | shasum -a 256 -c
          chmod +x $ACTION_LINT_DOWNLOADER_FILE
          $ACTION_LINT_DOWNLOADER_FILE

      - name: validate actionlint
        run: |
          ACTION_LINT=${{ steps.download_actionlint.outputs.executable }}
          echo "ce0b6b7a99cd9111597c74464f825d2f6bdfd7cc19b88bbcf1e77961f5318b0d  ${ACTION_LINT}" | shasum -a 256 -c
          chmod +x $ACTION_LINT

      # actionlintを実行する
      # actionlint docs: https://github.com/rhysd/actionlint/blob/main/docs/usage.md
      - name: lint
        run: |
          ACTION_LINT=${{ steps.download_actionlint.outputs.executable }}
          $ACTION_LINT -c .github/actionlint.yml .github/workflows/*.yml