set pnpm version

Author: timothycoleman

.github/workflows/deploy-guide.yml

@@ -23,6 +23,8 @@ jobs:
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
+        with:
+          version: 9
 
       - name: Setup Node.js
         uses: actions/setup-node@v4