Bump webpacker from 4.0.7 to 4.3.0

[dependabot-preview]

Bumps webpacker from 4.0.7 to 4.3.0.

Changelog

Sourced from webpacker's changelog.

Please note that Webpacker 3.1.0 and 3.1.1 have some serious bugs so please consider using either 3.0.2 or 3.2.0

Please note that Webpacker 4.1.0 has an installer bug. Please use 4.2.0 or above

[6.0.0] - 2020-TBD

• node_modules will no longer be compiled by default. This primarily fixes [rails issue #35501](rails/rails#35501) as well as numerous other webpacker issues. The disabled loader can still be required explicitly via:

const nodeModules = require('@rails/webpacker/rules/node_modules.js')
environment.loaders.append('nodeModules', nodeModules)

• If you have added environment.loaders.delete('nodeModules') to your environment.js, this must be removed or you will receive an error (Item nodeModules not found).
• The install task will now set the extract_css default to true in all environments and generate a separate application.css file for the default application pack, as supported by multiple files per entry introduced in 5.0.0. #2608

[5.1.1] - 2020-04-20

• Update TypeScript documentation and installer to use babel-loader for typescript.[(#2541](rails/webpacker#2541)

[5.1.0] - 2020-04-19

• Remove yarn integrity check #2518
• Switch from ts-loader to babel-loader #2449
  Please see the TypeScript documentation to upgrade existing projects to use typescript with 5.1
• Resolve multi-word snakecase WEBPACKER_DEV_SERVER env values #2528

[5.0.1] - 2020-03-22

• Upgrade deps and fix sass loader config options bug #2508

[5.0.0] - 2020-03-22

• Bump minimum node version #2428
• Bump minimum ruby/rails version #2415
• Add support for multiple files per entry #2476

  entry: {
    home: ['./home.js', './home.scss'],
    account: ['./account.js', './account.scss']
  }

You can now have two entry files with same names inside packs folder, home.scss and home.js

And, other minor fixes, please see a list of changes here

[4.2.2] - 2019-12-09

• Fixed issue with webpack clean task for nested assets #2391

Commits

• afb1f26 4.3.0
• e8e0910 bump compression-webpack-plugin to ^4.0.0 (#2695)
• 96af013 4.2.2
• 995f1ed Fix assets clean (#2391)
• 6bc19e7 4.2.1
• 6427cdb Make clean task simpler and fix issues (#2389)
• 417542c Install the version of Webpacker that is announced in the previous message. (...
• d905149 4.2.0
• 93152cf Check for webpacker.yml before setting source (#2366)
• f36e5ed 4.1.0
• Additional commits viewable in compare view

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[coveralls]

Coverage remained the same at 96.998% when pulling 16194fa on dependabot/bundler/webpacker-4.3.0 into 7b6c3be on develop.