fix(deps): Update webpack packages (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
file-loader	dependencies	major	^1.1.11 -> ^3.0.0	source
postcss-js	dependencies	major	^1.0.1 -> ^2.0.0	source
postcss-loader	dependencies	major	^2.1.6 -> ^3.0.0	source
raw-loader	dependencies	major	^0.5.1 -> ^1.0.0	source

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Release Notes

webpack-contrib/file-loader

v3.0.1

Compare Source

Bug Fixes

• relax options validation for additional properties (#​309) (c74d44e)

v3.0.0

Compare Source

Code Refactoring

• drop support for webpack < 4 (#​303) (203a4ee)
• more validations in options schema

Features

• resourcePath is now available in outputPath and publicPath (#​304) (0d66e64)
• context is now available in outputPath and publicPath (#​305) (d5eb823)

BREAKING CHANGES

• removed the useRelativePath option. It is dangerously and break url when you use multiple entry points.
• drop support for webpack < 4

v2.0.0

Compare Source

Code Refactoring

• drop support for webpack < 4 (#​303) (203a4ee)
• more validations in options schema

Features

• resourcePath is now available in outputPath and publicPath (#​304) (0d66e64)
• context is now available in outputPath and publicPath (#​305) (d5eb823)

BREAKING CHANGES

• removed the useRelativePath option. It is dangerously and break url when you use multiple entry points.
• drop support for webpack < 4

postcss/postcss-js

v2.0.0

Compare Source

• Remove Node.js 9 and Node.js 4 support.
• Use PostCSS 7.0.

postcss/postcss-loader

v3.0.0

Compare Source

Bug Fixes

• index: add ast version (meta.ast) (f34954f)
• index: emit warnings as an instance of {Error} (8ac6fb5)
• options: improved ValidationError messages (549ea08)

Chores

• package: update postcss v6.0.0...7.0.0 (dependencies) (#​375) (daa0da8)

BREAKING CHANGES

• package: requires node >= v6.0.0

2.1.6 (2018-07-10)

Bug Fixes

• package: config memory leak, updates postcss-load-config v1.2.0...2.0.0 (dependencies) (0547b12)

2.1.5 (2018-05-04)

Bug Fixes

• index: remove sourceMap warning (#​361) (4416791)

2.1.4 (2018-04-16)

Bug Fixes

• restore loader object in postcss config context (#​355) (2ff1735)

2.1.3 (2018-03-20)

Bug Fixes

• options: revert additionalProperties changes to keep SemVer (bd7fc38)

2.1.2 (2018-03-17)

Bug Fixes

• options: disallow additional properties and add ident to validation (#​346) (82ef553)

2.1.1 (2018-02-26)

Bug Fixes

• index: don't set to value (options) (#​339) (cdbb8b6)

webpack-contrib/raw-loader

v1.0.0

Bug Fixes

• escape invalid characters (#​43) (83f6541)

Features

• schema validation (#​58) (4a6da19)

BREAKING CHANGES

• minimum require webpack version is 4
• minimum require nodejs version is 6.9

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