update node version

Author: cctdaniel

.github/workflows/ci-ton-contract.yml

@@ -19,12 +19,12 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: "18"
+          node-version: "20.18.0"
 
       - name: Install pnpm
         uses: pnpm/action-setup@v2
         with:
-          version: 8
+          version: 9.12.3
 
       - name: Install dependencies
         run: pnpm install