chore(deps): Update which requirement from 7 to 8

Updates the requirements on [which](https://github.com/harryfei/which-rs) to permit the latest version.
- [Release notes](https://github.com/harryfei/which-rs/releases)
- [Changelog](https://github.com/harryfei/which-rs/blob/master/CHANGELOG.md)
- [Commits](harryfei/which-rs@7.0.0...8.0.0)

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

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

Author: dependabot[bot]

Cargo.toml

@@ -61,7 +61,7 @@ libc = "0.2"
 dirs = "6"
 
 # Binary lookup in PATH
-which = "7"
+which = "8"
 
 # Logging
 tracing = "0.1"