Update dependency mdformat-mkdocs to v3.1.1 (#14081)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[mdformat-mkdocs](https://redirect.github.com/kyleking/mdformat-mkdocs)
([changelog](https://redirect.github.com/kyleking/mdformat-mkdocs/releases))
| `==3.0.1` -> `==3.1.1` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/mdformat-mkdocs/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/mdformat-mkdocs/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/mdformat-mkdocs/3.0.1/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/mdformat-mkdocs/3.0.1/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>kyleking/mdformat-mkdocs (mdformat-mkdocs)</summary>

###
[`v3.1.1`](https://redirect.github.com/KyleKing/mdformat-mkdocs/releases/tag/v3.1.1)

[Compare
Source](https://redirect.github.com/kyleking/mdformat-mkdocs/compare/v3.1.0...v3.1.1)

**Full Changelog**:
KyleKing/mdformat-mkdocs@v3.1.0...v3.1.1

###
[`v3.1.0`](https://redirect.github.com/kyleking/mdformat-mkdocs/compare/v3.0.1...v3.1.0)

[Compare
Source](https://redirect.github.com/kyleking/mdformat-mkdocs/compare/v3.0.1...v3.1.0)

</details>

---

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docs/requirements-insiders.txt

@@ -4,7 +4,7 @@ mkdocs==1.6.1
 mkdocs-material @ git+ssh://[email protected]/astral-sh/mkdocs-material-insiders.git@38c0b8187325c3bab386b666daf3518ac036f2f4
 mkdocs-redirects==1.2.1
 mdformat==0.7.18
-mdformat-mkdocs==3.0.1
+mdformat-mkdocs==3.1.1
 mdformat-admon==2.0.6
 # Using a commit from pygments main branch so we get
 # https://github.com/pygments/pygments/pull/2773 before it's been released

docs/requirements.txt

@@ -4,7 +4,7 @@ mkdocs==1.6.1
 mkdocs-material==9.1.18
 mkdocs-redirects==1.2.1
 mdformat==0.7.18
-mdformat-mkdocs==3.0.1
+mdformat-mkdocs==3.1.1
 mdformat-admon==2.0.6
 # Using a commit from pygments main branch so we get
 # https://github.com/pygments/pygments/pull/2773 before it's been released