Update dependency eslint-loader to v4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
eslint-loader	devDependencies	major	3.0.4 -> 4.0.2

---

Release Notes

webpack-contrib/eslint-loader

### [`v4.0.2`](https://togithub.com/webpack-contrib/eslint-loader/blob/master/CHANGELOG.md#​402-httpsgithubcomwebpack-contribeslint-loadercomparev304v402-2020-04-24) [Compare Source](https://togithub.com/webpack-contrib/eslint-loader/compare/v4.0.1...v4.0.2) ### [`v4.0.1`](https://togithub.com/webpack-contrib/eslint-loader/blob/master/CHANGELOG.md#​401-httpsgithubcomwebpack-contribeslint-loadercomparev304v401-2020-04-24) [Compare Source](https://togithub.com/webpack-contrib/eslint-loader/compare/v4.0.0...v4.0.1) ### [`v4.0.0`](https://togithub.com/webpack-contrib/eslint-loader/blob/master/CHANGELOG.md#​400-httpsgithubcomwebpack-contribeslint-loadercomparev304v400-2020-04-03) [Compare Source](https://togithub.com/webpack-contrib/eslint-loader/compare/v3.0.4...v4.0.0) ##### Breaking Changes - drop support for Node < 10.13.0 - minimum supported eslint version is 6 ##### [3.0.4](https://togithub.com/webpack-contrib/eslint-loader/compare/v3.0.3...v3.0.4) (2020-04-02) ##### Bug Fixes - [#​316](https://togithub.com/webpack-contrib/eslint-loader/issues/316) updating loader-fs-cache min version ([#​317](https://togithub.com/webpack-contrib/eslint-loader/issues/317)) ([796e3d1](https://togithub.com/webpack-contrib/eslint-loader/commit/796e3d130a030ce48e14ee3421809ca40d25cde1)) ##### [3.0.3](https://togithub.com/webpack-contrib/eslint-loader/compare/v3.0.2...v3.0.3) (2019-12-06) ##### Bug Fixes - check result object ([#​311](https://togithub.com/webpack-contrib/eslint-loader/issues/311)) ([6bb1fa6](https://togithub.com/webpack-contrib/eslint-loader/commit/6bb1fa68d043f00de63cda4d9babd3a2c9a50d58)) - support webpack 5 ([#​312](https://togithub.com/webpack-contrib/eslint-loader/issues/312)) ([c0a9d0c](https://togithub.com/webpack-contrib/eslint-loader/commit/c0a9d0c118155c56c41dc344460f333a9e969eaf)) ##### [3.0.2](https://togithub.com/webpack-contrib/eslint-loader/compare/v3.0.1...v3.0.2) (2019-09-27) ##### Bug Fixes - check if contain results ([#​300](https://togithub.com/webpack-contrib/eslint-loader/issues/300)) ([7d1d1fe](https://togithub.com/webpack-contrib/eslint-loader/commit/7d1d1fe)) - ensure output file path ([#​299](https://togithub.com/webpack-contrib/eslint-loader/issues/299)) ([16e9ccf](https://togithub.com/webpack-contrib/eslint-loader/commit/16e9ccf)) ##### [3.0.1](https://togithub.com/webpack-contrib/eslint-loader/compare/v3.0.0...v3.0.1) (2019-09-25) ##### Bug Fixes - module build failed error at Linter.parseResults ([#​294](https://togithub.com/webpack-contrib/eslint-loader/issues/294)) ([360e69c](https://togithub.com/webpack-contrib/eslint-loader/commit/360e69c)) ##### [3.0.0](https://togithub.com/webpack-contrib/eslint-loader/compare/v2.2.1...v3.0.0) (2019-08-24) ##### Bugfix - fix corrupted filenames if cwd == "/" - cannot use string formatter in outputReport - no Output Report in File when build fails under webpack 4 - add posibility to use absolute file path in outputReport.filePath - it should be possible to use absolute file path in outputReport.filePath - try load official formatter ([#​285](https://togithub.com/webpack-contrib/eslint-loader/issues/285)) ([997cce5](https://togithub.com/webpack-contrib/eslint-loader/commit/997cce5)) - emit warning/error if no config was found/given ([#​286](https://togithub.com/webpack-contrib/eslint-loader/issues/286)) ([4204560](https://togithub.com/webpack-contrib/eslint-loader/commit/4204560)) ##### Features - validate schema options ##### Breaking Changes - drop support for Node < 8.9.0 - minimum supported webpack version is 4 - minimum supported eslint version is 5

---

Renovate configuration

:date: Schedule: At any time (no schedule defined).

:vertical_traffic_light: Automerge: Disabled by config. Please merge this manually once you are satisfied.

:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

:no_bell: Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.