Follow-up of request #14725

We should keep our NPM dev dependencies up to date.

webpack changelog: https://github.com/webpack/webpack/releases/tag/v4.43.0
css-loader changelog: https://github.com/webpack-contrib/css-loader/releases/tag/v3.5.0 and https://github.com/webpack-contrib/css-loader/releases/tag/v3.6.0
lerna changelog: https://github.com/lerna/lerna/releases/tag/v3.22.0
@vue/component-compiler-utils changelog: https://github.com/vuejs/component-compiler-utils/releases/tag/v3.2.0
ts-loader changelog: https://github.com/TypeStrong/ts-loader/releases/tag/v8.0.0

fork-ts-checker-webpack-plugin changelog: https://github.com/TypeStrong/fork-ts-checker-webpack-plugin/releases/tag/v5.0.0
ts-jest changelog: https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md#2610-2020-05-30

eslint changelog: https://github.com/eslint/eslint/blob/master/CHANGELOG.md (from v7.1.0)
typescript-eslint changelog: https://github.com/typescript-eslint/typescript-eslint/blob/v3.7.0/CHANGELOG.md#370-2020-07-20
eslint-plugin-jest changelog: https://github.com/jest-community/eslint-plugin-jest/blob/master/CHANGELOG.md#23180-2020-07-05
no changelog for eslint-plugin-no-unsanitized :/
eslint-plugin-import changelog: https://github.com/benmosher/eslint-plugin-import/blob/master/CHANGELOG.md#2220---2020-06-26
eslint-plugin-prettier changelog: https://github.com/prettier/eslint-plugin-prettier/blob/master/CHANGELOG.md#v314-2020-06-14

stylelint changelog: https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md#1361 (from 13.2.1)
No changelog for stylelint-config-property-sort-order-smacss changelog :/ https://github.com/cahamilton/stylelint-config-property-sort-order-smacss/compare/v6.0.0...v6.3.0

Packages not upgraded:
webpack-fix-style-only-entries v0.5.1 breaks our build.
vue-jest v3.0.6 comes with a new binary C++ dependency that we really don't need to add.

Dependencies not listed here only have patch-level semantic versioning upgrades.