fix(deps): update dependency commander to v4.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
commander	dependencies	minor	4.0.1 -> 4.1.0

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Release Notes

tj/commander.js

v4.1.0

Compare Source

Added

• two routines to change how option values are handled, and eliminate name clashes with command properties ([#​933][#​1102])
  • see storeOptionsAsProperties and passCommandToAction in README
• .parseAsync to use instead of .parse if supply async action handlers ([#​806][#​1118])

Fixed

• Remove trailing blanks from wrapped help text ([#​1096])

Changed

• update dependencies
• extend security coverage for Commander 2.x to 2020-02-03
• improvements to README
• improvements to TypeScript definition documentation
• move old versions out of main CHANGELOG
• removed explicit use of ts-node in tests

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[codecov-io]

Codecov Report

Merging #8 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master     #8   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           3      3           
  Lines          16     16           
=====================================
  Hits           16     16

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