Update dependency mkdocs-material to v9.6.11 (#2018)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[mkdocs-material](https://redirect.github.com/squidfunk/mkdocs-material)
([changelog](https://squidfunk.github.io/mkdocs-material/changelog/)) |
patch | `==9.6.9` -> `==9.6.11` |

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---

### Release Notes

<details>
<summary>squidfunk/mkdocs-material (mkdocs-material)</summary>

###
[`v9.6.11`](https://redirect.github.com/squidfunk/mkdocs-material/releases/tag/9.6.11):
mkdocs-material-9.6.11

[Compare
Source](https://redirect.github.com/squidfunk/mkdocs-material/compare/9.6.10...9.6.11)

-   Updated Docker image to latest Alpine Linux
-   Bump required Jinja version to 3.1
- Fixed
[#&#8203;8133](https://redirect.github.com/squidfunk/mkdocs-material/issues/8133):
Jinja filter `items` not available (9.6.10 regression)
- Fixed
[#&#8203;8128](https://redirect.github.com/squidfunk/mkdocs-material/issues/8128):
Search plugin not entirely disabled via enabled setting

###
[`v9.6.10`](https://redirect.github.com/squidfunk/mkdocs-material/releases/tag/9.6.10):
mkdocs-material-9.6.10

[Compare
Source](https://redirect.github.com/squidfunk/mkdocs-material/compare/9.6.9...9.6.10)

This version is a pure refactoring release, and does not contain new
features or bug fixes. It strives to improve the compatibility of our
templates with alternative Jinja-like template engines that we're
currently exploring, including [minijinja].

Additionally, it replaces several instances of Python function
invocations with idiomatic use of template filters. All instances where
variables have been mutated inside templates have been replaced. Most
changes have been made in partials, and only a few in blocks, and all of
them are fully backward compatible, so no changes to overrides are
necessary.

Note that this release does not replace the Jinja template engine with
minijinja. However, our templates are now 99% compatible with minijinja,
which means we can explore alternative Jinja-compatible implementations.
Additionally, immutability and removal of almost all Python function
invocations means much more idiomatic templating.

[minijinja]: https://redirect.github.com/mitsuhiko/minijinja

</details>

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Author: slack-oss-bot

.github/workflows/mkdocs-requirements.txt

@@ -7,7 +7,7 @@ Markdown==3.7
 MarkupSafe==3.0.2
 mkdocs==1.6.1
 mkdocs-macros-plugin==1.3.7
-mkdocs-material==9.6.9
+mkdocs-material==9.6.11
 mkdocs-material-extensions==1.3.1
 Pygments==2.19.1
 pymdown-extensions==10.14.3