chore(deps): update rust crate rstest to 0.18.2 (#537)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [rstest](https://github.com/la10736/rstest) | dev-dependencies |
patch | `0.18.1` -> `0.18.2` |

---

### Release Notes

<details>
<summary>la10736/rstest (rstest)</summary>

###
[`v0.18.2`](https://github.com/la10736/rstest/blob/HEAD/CHANGELOG.md#0182-2023813)

[Compare
Source](https://github.com/la10736/rstest/compare/v0.18.1...v0.18.2)

##### Changed

- Now `#[files]` accept also parent folders (see
[#&#8203;205](https://github.com/la10736/rstest/issues/205)
    for more details).

</details>

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Cargo.toml

@@ -41,6 +41,6 @@ time = { version = "0.3.25" }
 
 [dev-dependencies]
 pretty_assertions = "1.4.0"
-rstest = { version = "0.18.1", default-features = false }
+rstest = { version = "0.18.2", default-features = false }
 snapbox = "0.4.10"
 tempfile = "3.7.1"