pnpm version problem in Build Typescript

"Build Typescript" GitHub Actions workflow と package.json から始め、アクション設定内の pnpm バージョンと packageManager エントリを比較します。workflow の失敗を再現してバージョンのソースを一貫させ、その後、複数バージョンのエラーなしで workflow が完了することを確認します。

I keep my pnpm version pretty up to date (think I have min age set to 3 days).

The "Build Typescript" doesn't like this - it seems stuck on wanting v9.

Run pnpm/action-setup@v4
  with:
    version: 9
    dest: ~/setup-pnpm
    run_install: null
    cache: false
    cache_dependency_path: pnpm-lock.yaml
    package_json_file: package.json
    standalone: false
Running self-installer...
  Error: Multiple versions of pnpm specified:
    - version 9 in the GitHub Action config with the key "version"
    - version pnpm@11.2.1 in the package.json with the key "packageManager"
  Remove one of these versions to avoid version mismatch errors like ERR_PNPM_BAD_PM_VERSION
      at readTarget (/home/runner/work/_actions/pnpm/action-setup/v4/dist/index.js:1:7537)
      at runSelfInstaller (/home/runner/work/_actions/pnpm/action-setup/v4/dist/index.js:1:6702)
      at async install (/home/runner/work/_actions/pnpm/action-setup/v4/dist/index.js:1:5706)
      at async runMain (/home/runner/work/_actions/pnpm/action-setup/v4/dist/index.js:1:2804)
      at async main (/home/runner/work/_actions/pnpm/action-setup/v4/dist/index.js:1:2726)
  Error: Error: Multiple versions of pnpm specified:
    - version 9 in the GitHub Action config with the key "version"
    - version pnpm@11.2.1 in the package.json with the key "packageManager"
  Remove one of these versions to avoid version mismatch errors like ERR_PNPM_BAD_PM_VERSION