Update dependency fs-extra to v7.0.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
fs-extra	devDependencies	patch	7.0.0 -> 7.0.1	source

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Release Notes

jprichardson/node-fs-extra

### [`v7.0.1`](https://togithub.com/jprichardson/node-fs-extra/blob/master/CHANGELOG.md#​701--2018-11-07) [Compare Source](https://togithub.com/jprichardson/node-fs-extra/compare/7.0.0...7.0.1) - Fix `removeSync()` on Windows, in some cases, it would error out with `ENOTEMPTY` ([#​646](https://togithub.com/jprichardson/node-fs-extra/pull/646)) - Document `mode` option for `ensureDir*()` ([#​587](https://togithub.com/jprichardson/node-fs-extra/pull/587)) - Don't include documentation files in npm package tarball ([#​642](https://togithub.com/jprichardson/node-fs-extra/issues/642), [#​643](https://togithub.com/jprichardson/node-fs-extra/pull/643))

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