chore(deps): update dependency sphinx-autobuild to v2024.9.19 (#856)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[sphinx-autobuild](https://redirect.github.com/sphinx-doc/sphinx-autobuild#readme)
([changelog](https://redirect.github.com/sphinx-doc/sphinx-autobuild/blob/main/NEWS.rst))
| `==2024.9.17` -> `==2024.9.19` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/sphinx-autobuild/2024.9.19?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/sphinx-autobuild/2024.9.19?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/sphinx-autobuild/2024.9.17/2024.9.19?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/sphinx-autobuild/2024.9.17/2024.9.19?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>sphinx-doc/sphinx-autobuild (sphinx-autobuild)</summary>

###
[`v2024.9.19`](https://redirect.github.com/sphinx-doc/sphinx-autobuild/compare/2024.09.18...2024.09.19)

[Compare
Source](https://redirect.github.com/sphinx-doc/sphinx-autobuild/compare/2024.09.18...2024.09.19)

###
[`v2024.9.18`](https://redirect.github.com/sphinx-doc/sphinx-autobuild/compare/2024.09.17...2024.09.18)

[Compare
Source](https://redirect.github.com/sphinx-doc/sphinx-autobuild/compare/2024.09.17...2024.09.18)

</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.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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docs/requirements.txt

@@ -2,7 +2,7 @@ myst-parser==4.0.0
 rstcheck==6.2.4
 sphinx==8.0.2
 nbsphinx==0.9.5
-sphinx-autobuild==2024.9.17
+sphinx-autobuild==2024.9.19
 sphinx-markdown-parser==0.2.4
 sphinxcontrib-actdiag==3.0.0
 sphinxcontrib-blockdiag==3.0.0