Update dependency argparse to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
argparse	dependencies	major	^1.0.10 -> ^2.0.0

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Release Notes

nodeca/argparse

### [`v2.0.0`](https://togithub.com/nodeca/argparse/blob/master/CHANGELOG.md#​200---2020-08-14) [Compare Source](https://togithub.com/nodeca/argparse/compare/1.0.10...2.0.0) ##### Changed - Full rewrite. Now port from python 3.9.0 & more precise following. See [doc](./doc) for difference and migration info. - node.js 10+ required - Removed most of local docs in favour of original ones.

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[coveralls]

Coverage remained the same at 100.0% when pulling c2061cb49462abef4c40ba7cebd753e724ed3806 on renovate/argparse-2.x into 45cdf4006e935a069ece41af791db6ec6fee993e on master.

[codecov-commenter]

Codecov Report

Merging #76 into master will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #76   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          299       299           
=========================================
  Hits           299       299           

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