feat: Drop support for node 10 (fix #188)

BREAKING CHANGE: Node v10 has been dropped. Use v12 or greater

Author: nickserv

package.json

@@ -5,7 +5,7 @@
   "main": "dist/index.js",
   "types": "types/index.d.ts",
   "engines": {
-    "node": ">=10",
+    "node": ">=12",
     "npm": ">=6"
   },
   "scripts": {