Bump which from 6.0.3 to 7.0.0 (#2326)

Bumps [which](https://github.com/harryfei/which-rs) from 6.0.3 to 7.0.0.
- [Release notes](https://github.com/harryfei/which-rs/releases)
- [Changelog](https://github.com/harryfei/which-rs/blob/master/CHANGELOG.md)
- [Commits](harryfei/which-rs@6.0.3...7.0.0)

---
updated-dependencies:
- dependency-name: which
  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>

Cargo.toml

@@ -78,7 +78,7 @@ tracing = { version = "0.1.41" }
 tracing-subscriber = { version = "0.3.17" }
 trybuild = { version = "1.0.101" }
 wasm-instrument = { version = "0.4.0" }
-which = { version = "6.0.3" }
+which = { version = "7.0.0" }
 xxhash-rust = { version = "0.8" }
 const_env = { version = "0.1"}
 wat = { version = "1.221.0" }