chore: set pnpm version

Author: hughfenghen

.github/workflows/deploy-doc-site.yml

@@ -29,6 +29,8 @@ jobs:
 
       - name: set pnpm
         uses: pnpm/action-setup@v4
+        with:
+          version: 9
 
       - name: Set up Node.js
         uses: actions/setup-node@v4

.github/workflows/release.yml

@@ -22,6 +22,8 @@ jobs:
 
       - name: set pnpm
         uses: pnpm/action-setup@v4
+        with:
+          version: 9
 
       - name: Setup Node.js 20.x
         uses: actions/setup-node@v4