Bump webpack-merge from 2.6.1 to 4.2.2

[dependabot-preview]

Bumps webpack-merge from 2.6.1 to 4.2.2.

Changelog

Sourced from webpack-merge's changelog.

4.2.2 / 2019-08-27

• Fix - Update minimum version of lodash to 4.17.15 in order to avoid npm audit warning. #116
• Docs - Improve merge.unique documentation. #103
• Docs - Add clear note about precedence. #115

4.2.1 / 2019-01-04

• Feature - Support oneOf at merge.smart. #111
• Fix - If there's only single array to merge, clone it. #106

4.1.4 / 2018-08-01

• Maintenance - Remove bitHound from the README as it closed down. #102

4.1.3 / 2018-06-14

• Fix - Smart merge respects the existing loader order #79, #101

4.1.2 / 2017-02-22

• Maintenance - Update lodash, #97, #98

4.1.1 / 2017-11-01

• Docs - Add customizeArray and customizeObject examples. #93

4.1.0 / 2017-03-16

• Feature - merge.multiple to allow working with webpack multi-compiler mode. It accepts multiple objects and returns an array you can push to webpack. #74

4.0.0 / 2017-03-06

• Breaking feature - merge.smart allows re-ordering loaders like below. #70

merge.smart({
  loaders: [{
    test: /\.js$/,
    loaders: ['babel']
  }]
}, {
</tr></table> ... (truncated)

Commits

• d35e176 4.2.2
• a53214d Update lib
• ec35567 chore: Update changelog
• a56d5cb chore(merge): Update lodash to avoid npm audit warning
• ef4c067 docs(merge): Improve merge.unique docs
• ad2f92a docs(readme): Add a note about precedence
• c3a5156 chore: Add @​desfero to contributors
• 30a328c 4.2.1
• 3b78ed3 Update lib
• cb05b0b docs: Update version
• Additional commits viewable in compare view

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