updates gh actions

Signed-off-by: stadolf <[email protected]>

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     name: Smart contract tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -19,10 +19,10 @@ jobs:
         with:
           version: nightly-a117fbfa41edbaa1618ed099d78d65727bff4790
 
-      - name: Use Node.js 18
-        uses: actions/setup-node@v3
+      - name: Use Node.js 20
+        uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
 
       - name: Install node dependencies
         run: yarn --frozen-lockfile