specify pnpm version

Author: AmirSa12

.github/workflows/ci.yml

@@ -21,6 +21,8 @@ jobs:
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4.0.0
+        with:
+          version: 8
 
       - name: Set node version to 20
         uses: actions/setup-node@v4