build: bump which from 4.1.0 to 4.2.1 (#2941)

Bumps [which](https://github.com/harryfei/which-rs) from 4.1.0 to 4.2.1.
- [Release notes](https://github.com/harryfei/which-rs/releases)
- [Commits](https://github.com/harryfei/which-rs/compare/4.1.0...4.2.1)

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

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

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

Cargo.lock

@@ -2057,11 +2057,12 @@ dependencies = [
 
 [[package]]
 name = "which"
-version = "4.1.0"
+version = "4.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b55551e42cbdf2ce2bedd2203d0cc08dba002c27510f86dab6d0ce304cba3dfe"
+checksum = "7cc009ab82a2afc94b9e467ab4214aee9cad1356cd9191264203d7d72006e00d"
 dependencies = [
  "either",
+ "lazy_static",
  "libc",
 ]
 

Cargo.toml

@@ -65,7 +65,7 @@ serde = { version = "1.0.126", features = ["derive"] }
 indexmap = { version ="1.7.0", features = ["serde"] }
 notify-rust = { version = "4.5.1", optional = true }
 semver = "1.0.3"
-which = "4.1.0"
+which = "4.2.1"
 shadow-rs = "0.6.2"
 versions = "3.0.2"
 strsim = "0.10.0"