Use `packageManager` field in `package.json` to detect script runner automatically instead of relying on lockfile

[JounQin]

Is your feature request related to a problem? Please describe.

As title

Describe the solution you'd like

For "packageManager": "pnpm@7.5.0", we should use pnpm i for installation and pnpm build for build clearly

Describe alternatives you've considered

N/A

Additional context

N/A

[privatenumber]

PR welcome

[JounQin]

PR welcome

OK, I'll work on a PR for it soon.