[meta] add missing engines.node

Author: ljharb

package.json

@@ -32,5 +32,8 @@
     "@ljharb/eslint-config": "^21.1.1",
     "eslint": "=8.8.0",
     "tape": "^5.9.0"
+  },
+  "engines": {
+    "node": ">= 0.4"
   }
 }