Update dependency argparse to v2

Author: renovate-bot

_profile/package.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "0x": "^4.9.1",
     "@babel/polyfill": "^7.8.7",
-    "argparse": "^1.0.10",
+    "argparse": "^2.0.0",
     "bn.js": "^5.1.1",
     "crypto": "^1.0.1",
     "xorshift.js": "^1.0.5"