Update Rust crate anstream to v0.6.20 (#15210)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [anstream](https://redirect.github.com/rust-cli/anstyle) |
workspace.dependencies | patch | `0.6.19` -> `0.6.20` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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---

### Release Notes

<details>
<summary>rust-cli/anstyle (anstream)</summary>

###
[`v0.6.20`](https://redirect.github.com/rust-cli/anstyle/compare/anstream-v0.6.19...anstream-v0.6.20)

[Compare
Source](https://redirect.github.com/rust-cli/anstyle/compare/anstream-v0.6.19...anstream-v0.6.20)

</details>

---

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Cargo.lock

@@ -40,9 +40,9 @@ checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
 
 [[package]]
 name = "anstream"
-version = "0.6.19"
+version = "0.6.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "301af1932e46185686725e0fad2f8f2aa7da69dd70bf6ecc44d6b703844a3933"
+checksum = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192"
 dependencies = [
  "anstyle",
  "anstyle-parse",