Deps: Upgrade fs-extra to 11.1.0

[IanVS]

Issue: N/A

What I did

While investigating the performance of some vite plugins, I found that our internal version was taking much longer to run ensureDir from fs-extra than the same call in an external plugin (~40 times slower). After updating fs-extra, the performance matched up again. It seems like the recent versions of fs-extra are able to offload more work to native node, and since we are now node 16+, we can take advantage of that.

How to test

I think we should be good-to-go as long as CI passes, but it would be interesting to see if this has any impact on our performance benchmarks as well.

Checklist

• Make sure your changes are tested (stories and/or unit, integration, or end-to-end tests)
• Make sure to add/update documentation regarding your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Maintainers

• If this PR should be tested against many or all sandboxes,
  make sure to add the ci:merged or ci:daily GH label to it.
• Make sure this PR contains one of the labels below.

["cleanup", "BREAKING CHANGE", "feature request", "bug", "documentation", "maintenance", "dependencies", "other"]