⬆️🪝 Update pre-commit hook sirosen/texthooks to v0.6.8 (#481)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [sirosen/texthooks](https://redirect.github.com/sirosen/texthooks) |
repository | patch | `0.6.7` -> `0.6.8` |

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---

### Release Notes

<details>
<summary>sirosen/texthooks (sirosen/texthooks)</summary>

###
[`v0.6.8`](https://redirect.github.com/sirosen/texthooks/compare/0.6.7...0.6.8)

[Compare
Source](https://redirect.github.com/sirosen/texthooks/compare/0.6.7...0.6.8)

</details>

---

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---

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---

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.pre-commit-config.yaml

@@ -42,7 +42,7 @@ repos:
 
   # Handling unwanted unicode characters
   - repo: https://github.com/sirosen/texthooks
-    rev: 0.6.7
+    rev: 0.6.8
     hooks:
       - id: fix-ligatures
       - id: fix-smartquotes