feat(publish): add packageManager option

[bluwy]

In the recent Vite 5 beta release, npm publish was having trouble publishing vite. We got:

npm ERR! Cannot set properties of null (setting 'peer')

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/patak/.npm/_logs/2023-08-24T16_12_00_148Z-debug-0.log

Running pnpm publish instead fixes it, and I'm not really sure why. It could be pnpm installing dependencies in a certain way that npm fails.

Figured I add a new option instead of hardcoding it so we don't need a major bump, and also npm publish should work fine for our other packages, only vite is hitting this problem strangely.