Update dependency mini-css-extract-plugin to ^0.11.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mini-css-extract-plugin	dependencies	minor	^0.10.0 -> ^0.11.0

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Release Notes

webpack-contrib/mini-css-extract-plugin

### [`v0.11.0`](https://togithub.com/webpack-contrib/mini-css-extract-plugin/blob/master/CHANGELOG.md#​0110-httpsgithubcomwebpack-contribmini-css-extract-plugincomparev0100v0110-2020-08-27) [Compare Source](https://togithub.com/webpack-contrib/mini-css-extract-plugin/compare/4220c4f623241d4d557c50f3bf55e641cff769b8...v0.11.0)

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