Bump pathdiff from 0.2.0 to 0.2.1 (#723)

Bumps [pathdiff](https://github.com/Manishearth/pathdiff) from 0.2.0 to 0.2.1.
- [Release notes](https://github.com/Manishearth/pathdiff/releases)
- [Commits](https://github.com/Manishearth/pathdiff/commits)

---
updated-dependencies:
- dependency-name: pathdiff
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -29,7 +29,7 @@ dirs-next = "2.0.0"
 grep-cli = "0.1.6"
 itertools = "0.10.1"
 lazy_static = "1.4"
-pathdiff = "0.2.0"
+pathdiff = "0.2.1"
 regex = "1.4.6"
 shell-words = "1.0.0"
 structopt = "0.3.23"