Add engines definition

Author: voxpelli

package.json

@@ -10,6 +10,9 @@
   "bugs": {
     "url": "https://github.com/standard/eslint-config-standard/issues"
   },
+  "engines": {
+    "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+  },
   "devDependencies": {
     "eslint": "^8.0.1",
     "eslint-plugin-import": "^2.25.2",