Update build-fs-tree requirement from ^0.3.0 to ^0.6.0

Updates the requirements on [build-fs-tree](https://github.com/KSXGitHub/build-fs-tree) to permit the latest version.
- [Release notes](https://github.com/KSXGitHub/build-fs-tree/releases)
- [Commits](KSXGitHub/build-fs-tree@0.3.0...0.6.0)

---
updated-dependencies:
- dependency-name: build-fs-tree
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -62,6 +62,6 @@ version = "^2.3.0"
 optional = true
 
 [dev-dependencies]
-build-fs-tree = "^0.3.0"
+build-fs-tree = "^0.6.0"
 dunce = "^1.0.0"
 tempfile = "^3.2.0"