chore: Replace Undici by native Headers (#805)

Author: regseb

package-lock.json

@@ -226,8 +226,7 @@
   "dependencies": {
     "detect-europe-js": "^0.1.2",
     "is-standalone-pwa": "^0.1.1",
-    "ua-is-frozen": "^0.1.2",
-    "undici": "^7.12.0"
+    "ua-is-frozen": "^0.1.2"
   },
   "devDependencies": {
     "@babel/parser": "7.15.8",

package.json

@@ -2,7 +2,6 @@
 // Project: https://github.com/faisalman/ua-parser-js
 // Definitions by: Faisal Salman <https://github.com/faisalman>
 
-import type { Headers } from "undici";
 import { BrowserType, CPUArch, DeviceType, EngineName } from "../enums/ua-parser-enums";
 
 declare namespace UAParser {

src/main/ua-parser.d.ts

@@ -10,7 +10,6 @@ var cpus        = require('../data/ua/cpu/cpu-all.json');
 var devices     = readJsonFiles('test/data/ua/device');
 var engines     = require('../data/ua/engine/engine-all.json');
 var os          = readJsonFiles('test/data/ua/os');
-var { Headers } = require('undici');
 
 function readJsonFiles(dir) {
     var list = [];