Merge pull request #11 from buffcode/feature/mocha-9

feat: update mocha to v9

Author: buffcode

package.json

@@ -23,9 +23,9 @@
     "url": "https://github.com/buffcode/ntp-packet-parser.git"
   },
   "devDependencies": {
-    "@types/mocha": "^8.2.2",
+    "@types/mocha": "^9.0.0",
     "@types/node": "^15.3.0",
-    "mocha": "^8.4.0",
+    "mocha": "^9.1.3",
     "prettier": "^2.3.0",
     "ts-mocha": "^8.0.0",
     "ts-node": "^10.4.0",