Bump which from 7.0.2 to 8.0.0 (gitui-org#2723)

Bumps [which](https://github.com/harryfei/which-rs) from 7.0.2 to 8.0.0.
- [Release notes](https://github.com/harryfei/which-rs/releases)
- [Changelog](https://github.com/harryfei/which-rs/blob/master/CHANGELOG.md)
- [Commits](harryfei/which-rs@7.0.2...8.0.0)

---
updated-dependencies:
- dependency-name: which
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Cargo.lock

@@ -82,7 +82,7 @@ two-face = { version = "0.4.3", default-features = false }
 unicode-segmentation = "1.12"
 unicode-truncate = "2.0"
 unicode-width = "0.2"
-which = "7.0"
+which = "8.0"
 
 [build-dependencies]
 chrono = { version = "0.4", default-features = false, features = ["clock"] }