Update dependency click to v8.1.8 (#1864)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [click](https://redirect.github.com/pallets/click)
([changelog](https://click.palletsprojects.com/changes/)) | patch |
`==8.1.7` -> `==8.1.8` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>pallets/click (click)</summary>

###
[`v8.1.8`](https://redirect.github.com/pallets/click/blob/HEAD/CHANGES.rst#Version-818)

[Compare
Source](https://redirect.github.com/pallets/click/compare/8.1.7...8.1.8)

Unreleased

-   Fix an issue with type hints for `click.open_file()`. :issue:`2717`
-   Fix issue where error message for invalid `click.Path` displays on
    multiple lines. :issue:`2697`
- Fixed issue that prevented a default value of `""` from being
displayed in
    the help for an option. :issue:`2500`
-   The test runner handles stripping color consistently on Windows.
    :issue:`2705`
-   Show correct value for flag default when using `default_map`.
    :issue:`2632`
-   Fix `click.echo(color=...)` passing `color` to coloroma so it can be
    forced on Windows. :issue:`2606`.

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, 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

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS44MC4wIiwidXBkYXRlZEluVmVyIjoiMzkuODAuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->

.github/workflows/mkdocs-requirements.txt

@@ -1,4 +1,4 @@
-click==8.1.7
+click==8.1.8
 future==1.0.0
 Jinja2==3.1.5
 livereload==2.7.1