chore: globally install corepack

Author: trivikr

.github/workflows/pkg.pr.new.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - run: corepack enable
+      - run: npm i -g corepack
       - uses: actions/setup-node@v4
         with:
           node-version: 22.x