Update commander to the latest version 🚀

[greenkeeper]

The dependency commander was updated from 2.9.0 to 2.20.0.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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Release Notes for v2.20.0

• fix: resolve symbolic links completely when hunting for subcommands (#935)
• Update index.d.ts (#930)
• Update Readme.md (#924)
• Remove --save option as it isn't required anymore (#918)
• Add link to the license file (#900)
• Added example of receiving args from options (#858)
• Added missing semicolon (#882)
• Add extension to .eslintrc (#876)

Commits

The new version differs by 174 commits.

• 3e8bf54 Merge pull request #946 from abetomo/version_bump_2.20.0
• 1ffcbef version bump 2.20.0
• 50922d8 Merge pull request #935 from MarshallOfSound/fix-deep-sym-link-resolution
• 994d24d fix: resolve symbol links until their are no more symbolic links
• 291fc04 Merge pull request #930 from kira1928/update-index.d.ts
• a469137 some more fix.
• a679949 Refine variable name. Use strict type definition instead of
• e31bb8a Update index.d.ts
• 4542306 Merge pull request #924 from ForJing/patch-1
• 77bb580 Update Readme.md
• 68545af Remove --save option as it isn't required anymore
• 82d0d0a fix url :construction:
• cec57f5 Add link to the license file :+1:
• d240081 Update Readme.md
• 03f7d38 Added example of receiving args from options

There are 174 commits in total.

See the full diff

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[ApiaryBot]

🎉 This PR is included in version 2.2.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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