ci: use core pack (#72)

* ci: use core pack

* format code

.github/workflows/ci.yml

@@ -23,7 +23,6 @@ jobs:
 
       - uses: pnpm/action-setup@v4.0.0
         with:
-          version: latest
           run_install: false
 
       - name: get pnpm store directory

CONTRIBUTING.md

@@ -1,7 +1,7 @@
 # Development Workflow
 
-> We use pnpm for development.
-> Please make sure you have node.js, npm and pnpm installed on your machine.
+> We use [corepack with pnpm](https://pnpm.io/installation#using-corepack) for development.
+> Please make sure you have node.js, npm installed and corepack enabled.
 
 After cloning prosemirror-adapter, run `pnpm install` to install dependencies.
 

package.json

@@ -1,10 +1,10 @@
 {
   "name": "@prosemirror-adapter/monorepo",
   "private": true,
+  "packageManager": "pnpm@9.4.0",
   "license": "MIT",
   "engines": {
-    "node": ">=20",
-    "pnpm": ">=9"
+    "node": ">=20"
   },
   "scripts": {
     "build": "pnpm -r run build",