chore: Set pnpm version to 8 in release workflow

Author: 7nohe

.github/workflows/release.yml

@@ -18,6 +18,8 @@ jobs:
 
       - name: Install pnpm
         uses: pnpm/action-setup@v3
+        with:
+          version: 8
 
       - name: Install Node.js
         uses: actions/setup-node@v4