add minimum node version for esm

Author: luludotdev

package.json

@@ -8,6 +8,9 @@
   "files": [
     "lib/**/*"
   ],
+  "engines": {
+    "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+  },
   "scripts": {
     "prepublishOnly": "yarn run test && yarn run build",
     "test": "yarn run check && yarn run lint",