Update actions/setup-node to v4 (#1039)

Author: WillGibson

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    - uses: actions/setup-node@v2
+    - uses: actions/setup-node@v4
       with:
         node-version: '18'
         cache: 'npm'