fix(deps): update dependency fs-extra to v8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
fs-extra	dependencies	major	^3.0.1 -> ^8.0.0

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Release Notes

jprichardson/node-fs-extra

v8.1.0

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• Add support for promisified fs.realpath.native in Node v9.2+ (#​650, #​682)
• Update graceful-fs dependency (#​700)
• Use graceful-fs everywhere (#​700)

v8.0.1

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• Fix bug Maximum call stack size exceeded error in util/stat (#​679)

v8.0.0

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NOTE: Node.js v6 support is deprecated, and will be dropped in the next major release.

• Use renameSync() under the hood in moveSync()
• Fix bug with bind-mounted directories in copy*() (#​613, #​618)
• Fix bug in move() with case-insensitive file systems
• Use fs.stat()'s bigint option in copy*() & move*() where possible (#​657)

v7.0.1

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• Fix removeSync() on Windows, in some cases, it would error out with ENOTEMPTY (#​646)
• Document mode option for ensureDir*() (#​587)
• Don't include documentation files in npm package tarball (#​642, #​643)

v7.0.0

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• BREAKING: Refine copy*() handling of symlinks to properly detect symlinks that point to the same file. (#​582)
• Fix bug with copying write-protected directories (#​600)
• Universalify fs.lchmod() (#​596)
• Add engines field to package.json (#​580)

v6.0.1

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• Fix fs.promises ExperimentalWarning on Node v10.1.0 (#​578)

v6.0.0

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• Drop support for Node.js versions 4, 5, & 7 (#​564)
• Rewrite move to use fs.rename where possible (#​549)
• Don't convert relative paths to absolute paths for filter (#​554)
• copy*'s behavior when preserveTimestamps is false has been OS-dependent since 5.0.0, but that's now explicitly noted in the docs (#​563)
• Fix subdirectory detection for copy* & move* (#​541)
• Handle case-insensitive paths correctly in copy* (#​568)

v5.0.0

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Significant refactor of copy() & copySync(), including breaking changes. No changes to other functions in this release.

Huge thanks to @​manidlou for doing most of the work on this release.

• The filter option can no longer be a RegExp (must be a function). This was deprecated since fs-extra v1.0.0. #​512
• copy()'s filter option can now be a function that returns a Promise. #​518
• copy() & copySync() now use fs.copyFile()/fs.copyFileSync() in environments that support it (currently Node 8.5.0+). Older Node versions still get the old implementation. #​505
• Don't allow copying a directory into itself. #​83
• Handle copying between identical files. #​198
• Error out when copying an empty folder to a path that already exists. #​464
• Don't create dest's parent if the filter function aborts the copy() operation. #​517
• Fix writeStream not being closed if there was an error in copy(). #​516

v4.0.3

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• Fix wrong chmod values in fs.remove() #​501
• Fix TypeError on systems that don't have some fs operations like lchown #​520

v4.0.2

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• Added EOL option to writeJson* & outputJson* (via upgrade to jsonfile v4)
• Added promise support to fs.copyFile() in Node 8.5+
• Added .js extension to main field in package.json for better tooling compatibility. #​485

v4.0.1

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Fixed

• Previously, ensureFile() & ensureFileSync() would do nothing if the path was a directory. Now, they error out for consistency with ensureDir(). #​465, #​466, #​470

v4.0.0

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Changed

• BREAKING: The promisified versions of fs.read() & fs.write() now return objects. See the docs for details. #​436, #​449
• fs.move() now errors out when destination is a subdirectory of source. #​458
• Applied upstream fixes from rimraf to fs.remove() & fs.removeSync(). #​459

Fixed

• Got fs.outputJSONSync() working again; it was broken due to refactoring. #​428

Also clarified the docs in a few places.

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[jakejarrett]

Looks like there are no breaking changes specific to our use cases, merging & testing on dev (and fixing where needed)