chore(deps): Update Rust crate toml-test-data to v1.12.0 (#734)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [toml-test-data](https://togithub.com/epage/toml-test-rs) |
dev-dependencies | minor | `1.11.0` -> `1.12.0` |

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### Release Notes

<details>
<summary>epage/toml-test-rs (toml-test-data)</summary>

###
[`v1.12.0`](https://togithub.com/epage/toml-test-rs/compare/toml-test-data-v1.11.0...toml-test-data-v1.12.0)

[Compare
Source](https://togithub.com/epage/toml-test-rs/compare/toml-test-data-v1.11.0...toml-test-data-v1.12.0)

</details>

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