This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [indexmap](https://redirect.github.com/indexmap-rs/indexmap) |
workspace.dependencies | minor | `2.8.0` -> `2.9.0` |

---

### Release Notes

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

###
[`v2.9.0`](https://redirect.github.com/indexmap-rs/indexmap/blob/HEAD/RELEASES.md#290-2025-04-04)

[Compare
Source](https://redirect.github.com/indexmap-rs/indexmap/compare/2.8.0...2.9.0)

- Added a `get_disjoint_mut` method to `IndexMap`, matching Rust 1.86's
    `HashMap` method.
- Added a `get_disjoint_indices_mut` method to `IndexMap` and
`map::Slice`,
    matching Rust 1.86's `get_disjoint_mut` method on slices.
- Deprecated the `borsh` feature in favor of their own `indexmap`
feature,
    solving a cyclic dependency that occured via `borsh-derive`.

</details>

---

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---

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---

Release Notes:

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