Update npm-run-all to version 3.1.0 🚀

Hello lovely humans,

npm-run-all just published its new version 3.1.0.

State	Update :rocket:
Dependency	npm-run-all
New version	3.1.0
Type	devDependency

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 npm-run-all. 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.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right? Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project :sparkles:

You rock!

:palm_tree:

The new version differs by 15 commits .

51eaa25 3.1.0
6a3697d Merge pull request #61 from mysticatea/issue60
09507bc New: add supporting $npm_config_xxx (fixes #60)
a32ca2f Chore: rename tests: env-check/overwriting → package-config
f873b35 3.0.0
f0544d7 Fix: remove for-of statements
58c5df8 Chore: improve --race tests
1e2b299 Docs: update README.md
3d71d92 Chore: switch to nyc from isparta
2e5663a Chore: try to improve tests for --race
0c22372 Added appveyor support for modern node versions (#57)
6d46ed9 Breaking: supports default values for argument placeholders (fixes #54)
6dbc1fe Merge branch 'pr/50'
13f86dc Chore: increase timer for tests
ea5a6bb Fix to not leave any garbage.

See the full diff.

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ta2edchimp / opt-cli

Update npm-run-all to version 3.1.0 🚀 #127

Current coverage is 100% (diff: 100%)