chore(deps): update rust crate assert_cmd to v2.0.15 (#279)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [assert_cmd](https://togithub.com/assert-rs/assert_cmd) | workspace.dependencies | patch | `2.0.14` -> `2.0.15` |

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### Release Notes

<details>
<summary>assert-rs/assert_cmd (assert_cmd)</summary>

### [`v2.0.15`](https://togithub.com/assert-rs/assert_cmd/blob/HEAD/CHANGELOG.md#2015---2024-07-25)

[Compare Source](https://togithub.com/assert-rs/assert_cmd/compare/v2.0.14...v2.0.15)

##### Compatibility

-   MSRV is now 1.74.0

</details>

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