chore(deps): update rust crate fsst-rs to v0.2.2 (#675)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [fsst-rs](https://togithub.com/spiraldb/fsst) | workspace.dependencies
| patch | `0.2.1` -> `0.2.2` |

---

### Release Notes

<details>
<summary>spiraldb/fsst (fsst-rs)</summary>

###
[`v0.2.2`](https://togithub.com/spiraldb/fsst/blob/HEAD/CHANGELOG.md#022---2024-08-21)

[Compare
Source](https://togithub.com/spiraldb/fsst/compare/v0.2.1...v0.2.2)

##### Other

- implement second bitmap, ~2x speedup for train
([#&#8203;21](https://togithub.com/spiraldb/fsst/pull/21))
- remove spurious check
([#&#8203;18](https://togithub.com/spiraldb/fsst/pull/18))

</details>

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