chore(deps): update dependency pymdown-extensions to v10 (#117)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[pymdown-extensions](https://togithub.com/facelessuser/pymdown-extensions)
| `==9.11` -> `==10.0.1` |
[![age](https://badges.renovateapi.com/packages/pypi/pymdown-extensions/10.0.1/age-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://badges.renovateapi.com/packages/pypi/pymdown-extensions/10.0.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://badges.renovateapi.com/packages/pypi/pymdown-extensions/10.0.1/compatibility-slim/9.11)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://badges.renovateapi.com/packages/pypi/pymdown-extensions/10.0.1/confidence-slim/9.11)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>facelessuser/pymdown-extensions</summary>

###
[`v10.0.1`](https://togithub.com/facelessuser/pymdown-extensions/releases/tag/10.0.1)

[Compare
Source](https://togithub.com/facelessuser/pymdown-extensions/compare/10.0...10.0.1)

##### 10.0.1

- **FIX**: Regression related to snippets nested deeply under specified
base path.

###
[`v10.0`](https://togithub.com/facelessuser/pymdown-extensions/releases/tag/10.0)

[Compare
Source](https://togithub.com/facelessuser/pymdown-extensions/compare/9.11...10.0)

#### 10.0

- **Break**: Snippets: snippets will restrict snippets to ensure they
are under the `base_path` preventing snippets
relative to the `base_path` but not explicitly under it.
`restrict_base_path` can be set to `False` for legacy
    behavior.

</details>

---

### Configuration

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Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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---

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docs/requirements.txt

@@ -3,4 +3,4 @@ mkdocs-material
 mkdocstrings[python]==0.22.0
 mkdocs-include-markdown-plugin
 pygments
-pymdown-extensions==9.11
+pymdown-extensions==10.0.1