Update Rust crate which to v6.0.3 (#16646)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [which](https://togithub.com/harryfei/which-rs) |
workspace.dependencies | patch | `6.0.2` -> `6.0.3` |

---

### Release Notes

<details>
<summary>harryfei/which-rs (which)</summary>

###
[`v6.0.3`](https://togithub.com/harryfei/which-rs/blob/HEAD/CHANGELOG.md#603)

[Compare
Source](https://togithub.com/harryfei/which-rs/compare/6.0.2...6.0.3)

- Enhance `tracing` feature with some `debug` level logs for higher
level logic.

</details>

---

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---

Release Notes:

- N/A

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Cargo.lock

@@ -8127,7 +8127,7 @@ dependencies = [
  "text",
  "unindent",
  "util",
- "which 6.0.2",
+ "which 6.0.3",
  "worktree",
 ]
 
@@ -12879,9 +12879,9 @@ dependencies = [
 
 [[package]]
 name = "which"
-version = "6.0.2"
+version = "6.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d9c5ed668ee1f17edb3b627225343d210006a90bb1e3745ce1f30b1fb115075"
+checksum = "b4ee928febd44d98f2f459a4a79bd4d928591333a494a10a868418ac1b39cf1f"
 dependencies = [
  "either",
  "home",