chore: Upgrade walkdir (#7336)
## Summary
The only commit is [api: add follow_root_links() option to WalkDir](https://github.com/BurntSushi/walkdir/commit/dcc527d8326fae4272b66bb55f433a302a8cad6f) whicih addsa new option wheter `walkdir` should follow a root symlink or not.
The new option defaults to `true` which is the same as before.
## Test Plan
`cargo test`
