fix: use explicit pnpm version in workflow and remove from package.json

Author: Rimba-maker

.github/workflows/deploy.yml

@@ -19,6 +19,8 @@ jobs:
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
+        with:
+          version: 10
 
       - name: Setup Node
         uses: actions/setup-node@v4

package.json

@@ -20,7 +20,6 @@
     "@types/node": "25.9.1",
     "typescript": "6.0.3"
   },
-  "packageManager": "pnpm@10.29.2",
   "pnpm": {
     "overrides": {
       "yaml": ">=2.8.3"