fix(deps): update dependency @astrojs/sitemap to v3.1.1 (#418)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@astrojs/sitemap](https://docs.astro.build/en/guides/integrations-guide/sitemap/)
([source](https://togithub.com/withastro/astro/tree/HEAD/packages/integrations/sitemap))
| [`3.1.0` ->
`3.1.1`](https://renovatebot.com/diffs/npm/@astrojs%2fsitemap/3.1.0/3.1.1)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@astrojs%2fsitemap/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@astrojs%2fsitemap/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@astrojs%2fsitemap/3.1.0/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@astrojs%2fsitemap/3.1.0/3.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>withastro/astro (@&#8203;astrojs/sitemap)</summary>

###
[`v3.1.1`](https://togithub.com/withastro/astro/blob/HEAD/packages/integrations/sitemap/CHANGELOG.md#311)

[Compare
Source](https://togithub.com/withastro/astro/compare/@astrojs/sitemap@3.1.0...@astrojs/sitemap@3.1.1)

##### Patch Changes

- [#&#8203;10179](https://togithub.com/withastro/astro/pull/10179)
[`6343f6a438d790fa16a0dd268f4a51def4fa0f33`](https://togithub.com/withastro/astro/commit/6343f6a438d790fa16a0dd268f4a51def4fa0f33)
Thanks [@&#8203;ematipico](https://togithub.com/ematipico)! - Revert
[https://github.com/withastro/astro/pull/9846](https://togithub.com/withastro/astro/pull/9846)

The feature to customize the file name of the sitemap was reverted due
to some internal issues with one of the dependencies. With an
non-deterministic behaviour, the sitemap file was sometime emitted with
incorrect syntax.

- [#&#8203;9975](https://togithub.com/withastro/astro/pull/9975)
[`ec7d2ebbd96b8c2dfdadaf076bbf7953007536ed`](https://togithub.com/withastro/astro/commit/ec7d2ebbd96b8c2dfdadaf076bbf7953007536ed)
Thanks [@&#8203;moose96](https://togithub.com/moose96)! - Fixes URL
generation for routes that rest parameters and start with `/`

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **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

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/Johannes-Andersen/Johannes).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yMDAuMCIsInVwZGF0ZWRJblZlciI6IjM3LjIwMC4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

package.json

@@ -23,7 +23,7 @@
   "dependencies": {
     "@astrojs/check": "0.5.5",
     "@astrojs/cloudflare": "9.0.1",
-    "@astrojs/sitemap": "3.1.0",
+    "@astrojs/sitemap": "3.1.1",
     "@astrojs/tailwind": "5.1.0",
     "astro": "4.4.2",
     "astro-icon": "1.1.0",