chore(deps): bump fs-extra from 8.1.0 to 9.0.0

[dependabot-preview]

Bumps fs-extra from 8.1.0 to 9.0.0.

Changelog

Sourced from fs-extra's changelog.

9.0.0 / 2020-03-19

Breaking changes

• Requires Node.js version 10 or greater (#725, #751)
• Switched ensureDir* to use a fork of https://github.com/sindresorhus/make-dir to make use of native recursive fs.mkdir where possible (#619, #756)
• Properly preserve atime for copy* with preserveTimestamps option (#633)

The following changes, allthough technically breaking, will not affect the vast majority of users:

• outputJson now outputs objects as they were when the function was called, even if they are mutated later (#702, #768)
• Cannot pass null as an options parameter to *Json* methods (#745, #768)

Improvements

• Add promise shims for fs.writev & fs.opendir (#747)
• Better errors for ensureFile (#696, #744)
• Better file comparison for older Node versions (#694)

Miscellaneous changes

• Peformance optimizations (#762, #764)
• Add missing documentation for aliases (#758, #766)
• Update universalify dependency (#767)

Commits

• a571007 9.0.0
• a149f82 JSON updates (#768)
• 92388f2 Upgrade universalify (#767)
• 223eb89 Document all create*() aliases for ensure*() methods (#766)
• ab92b24 BREAKING: Use internal fork of make-dir for mkdirs implementation (#756)
• 075c2d1 Refactor internal stat utils (#764)
• ce41762 Don't generate package-lock.json; instead of just ignoring it (#763)
• cdc7745 Use at-least-node instead of homespun version sniffing (#760)
• 9bfd380 Cleanup lib/util/ to remove unused code (#757)
• 3120c5c copy*(): remove copyFileFallback (#755)
• Additional commits viewable in compare view

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