Update debug package to version 4.0.0

[ryanelian]

Bug Report

Current Behavior

I am getting warnings in my CI due to updated debug package:

• 3.2.0 wrongly released as minor version debug-js/debug#603 (comment)

• https://github.com/visionmedia/debug/releases/tag/4.0.0

warning @babel/core > debug@3.2.4: `debug` versions 3.2.0-3.2.2 break Node 4. Users of node LTS and onward (modern Node versions): please upgrade to `debug@4` or above as soon as possible. Node 4 users: please pin to `debug@>=3.2.3 <4` as it will be the last version range that supports Node@4.
warning @babel/core > @babel/traverse > debug@3.2.4: `debug` versions 3.2.0-3.2.2 break Node 4. Users of node LTS and onward (modern Node versions): please upgrade to `debug@4` or above as soon as possible. Node 4 users: please pin to `debug@>=3.2.3 <4` as it will be the last version range that supports Node@4.

Input Code

npm install

Expected behavior/code

No warnings in my CI.

Babel Configuration (.babelrc, package.json, cli command)

Not applicable

Environment

• Babel version(s): @babel/core@7.0.0, @babel/traverse@7.0.0
• Node/npm version: 10/6.2.0
• OS: Linux, Windows
• Monorepo [e.g. yes/no/Lerna]: no
• How you are using Babel: Node API

Possible Solution

npm install debug

On both @babel/core and @babel/traverse packages.

Additional context/Screenshots

[babel-bot]

Hey @ryanelian! We really appreciate you taking the time to report an issue. The collaborators
on this project attempt to help as many people as possible, but we're a limited number of volunteers,
so it's possible this won't be addressed swiftly.

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[existentialism]

Fixed in #8989