Bump @astrojs/sitemap from 3.6.1 to 3.7.0

Bumps [@astrojs/sitemap](https://github.com/withastro/astro/tree/HEAD/packages/integrations/sitemap) from 3.6.1 to 3.7.0.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/sitemap/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/sitemap@3.7.0/packages/integrations/sitemap)

---
updated-dependencies:
- dependency-name: "@astrojs/sitemap"
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -21,7 +21,7 @@
 		"prepublishOnly": "astro build"
 	},
 	"dependencies": {
-		"@astrojs/sitemap": "3.6.1",
+		"@astrojs/sitemap": "3.7.0",
 		"@astrojs/solid-js": "5.1.3",
 		"@playform/build": "0.2.6",
 		"@playform/compress": "0.2.1",