Recreate package-lock.json using Node.js 8.9.3 & npm 5.6.0

[ntwb]

Description

Follow up to #4073

This PR regenerates the package-lock.json via npm install using Node.js 8.9.3 and npm 5.6.0

How Has This Been Tested?

Tested using npm test

Screenshots (jpeg or gifs if applicable):

Types of changes

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows has proper inline documentation.

[ntwb]

Looking at this PR what I notice is:

• Various Jest modules have been reordered, expect, jest-mock, jest-leak-detector, jest-mock etc but everything looks good to me in this regard.

• Lots of module hashes switching from sha1's to sha512's, I'm not sure if this is a recent change to, or a recent release of npm to now preference sha512's or not.

• Quite a few packages have minor semantic version bump, so that's probably a good thing to get a few packages updated that have had minor bugs fixed and had a new minor release released.

• The diff stats are +2,030 −2,124

[gziolo]

sha1 vs sha512 is a well-known issue. It would be great to see it finally fixed, but it might just the fact that they are added using a single machine :)

We have now e2e tests which give a better confidence about such changes. Speaking myself, I'm fine with merging this one.

[gziolo]

Have you checked if it has impact on the bundles size for Gutenberg build files? I guess it shouldn't have, but better to double check.

[ntwb]

Testing: npm run package-plugin

This branch: gutenberg.zip = 1,392,157 bytes
Current master branch: gutenberg.zip = 1,392,318 bytes

[gziolo]

Let's get it in then 👍