Update Rust crate ordermap to v0.5.6 (#16781)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ordermap](https://redirect.github.com/indexmap-rs/ordermap) |
workspace.dependencies | patch | `0.5.5` -> `0.5.6` |

---

> [!WARNING]
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---

### Release Notes

<details>
<summary>indexmap-rs/ordermap (ordermap)</summary>

###
[`v0.5.6`](https://redirect.github.com/indexmap-rs/ordermap/blob/HEAD/RELEASES.md#056-2025-03-10)

[Compare
Source](https://redirect.github.com/indexmap-rs/ordermap/compare/0.5.5...0.5.6)

- Added `ordermap_with_default!` and `orderset_with_default!` to be used
with
    alternative hashers, especially when using the crate without `std`.
-   Updated the `indexmap` dependency to version 2.8.0.

</details>

---

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Cargo.lock

@@ -1933,9 +1933,9 @@ checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
 
 [[package]]
 name = "ordermap"
-version = "0.5.5"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c55fdf45a2b1e929e3656d404395767e05c98b6ebd8157eb31e370077d545160"
+checksum = "6e98f974336ceffd5b1b1f4fcbb89a23c8dcd334adc4b8612f11b7fa99944535"
 dependencies = [
  "indexmap",
 ]