Update yargs to version 6.3.0 🚀

Hello lovely humans,

yargs just published its new version 6.3.0.

State	Update :rocket:
Dependency	yargs
New version	6.3.0
Type	dependency

This version is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of yargs. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

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Good luck with your project :sparkles:

You rock!

:palm_tree:

The new version differs by 124 commits .

164efb6 chore: upgrade nyc
066613a chore(release): 6.3.0
92aaa7c docs: add new languages to supported locales (#681)
6b85cc6 fix(command): subcommands via commandDir() now supported for parse(msg, cb) (#678)
02c0970 chore: Moved breaking change from "features" to "breaking" in changelog (#677)
c05e36b feat(locales): Add Thai locale file (#679)
004e70b chore(release): 6.2.0
3fe9b8f fix: stop applying parser to context object (#675)
81984e6 feat: Italian translations for 'did you mean' and 'aliases' (#673)
5615a82 feat: add new pt_BR translations (#674)
0cc6e5a chore(release): 6.1.1
ae4bcd4 fix: freeze was not resetting configObjects to initial state; addressed performance issue raised by @nexdrew. (#670)
6a88f83 chore(release): 6.1.0
051b19a chore: add read-pkg-up to greenkeeper ignore
f284c29 feat: reworking yargs API to make it easier to run in headless environments, e.g., Slack (#646)

There are 124 commits in total. See the full diff.

This pull request was created by greenkeeper.io.

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reactjs / react-magic

Update yargs to version 6.3.0 🚀 #84