Add `packageManager` to the "constraints" section

[CatChen]

Feature Use Case

It's part of corepack. It's used to defined package manager and its version. It should go next to engine.

Feature Proposal

Add it to the "constraints" group:

prettier-plugin-package/lib/rules/sort.js

Lines 32 to 35 in 51481cd

	// constraints
	'engines',
	'cpu',
	'os',