fix(deps): update dependency file-loader to v6 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
file-loader	dependencies	major	^5.0.2 -> ^6.0.0

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Release Notes

webpack-contrib/file-loader

### [`v6.0.0`](https://togithub.com/webpack-contrib/file-loader/blob/master/CHANGELOG.md#​600-httpsgithubcomwebpack-contribfile-loadercomparev510v600-2020-03-17) [Compare Source](https://togithub.com/webpack-contrib/file-loader/compare/v5.1.0...v6.0.0) ##### ⚠ BREAKING CHANGES - use `md4` by default for hashing ([#​369](https://togithub.com/webpack-contrib/file-loader/issues/369)) ([ad39022](https://togithub.com/webpack-contrib/file-loader/commit/ad3902284d28adeddf667212a39faa4c6bfb2964))

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