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

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
fs-extra	dependencies	major	^5.0.0 -> ^8.0.0
@types/fs-extra	devDependencies	patch	8.0.0 -> 8.0.1

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Release Notes

jprichardson/node-fs-extra

v8.1.0

Compare Source

• 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

Compare Source

• 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

Compare Source

• 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

Compare Source

• 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)

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