chore(deps): bump the npm group with 2 updates (#1119)

Bumps the npm group with 2 updates: [@astrojs/sitemap](https://github.com/withastro/astro/tree/HEAD/packages/integrations/sitemap) and [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `@astrojs/sitemap` from 3.7.1 to 3.7.2
- [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@3.7.2/packages/integrations/sitemap)

Updates `astro` from 6.0.8 to 6.1.1
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@6.1.1/packages/astro)

---
updated-dependencies:
- dependency-name: "@astrojs/sitemap"
  dependency-version: 3.7.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: npm
- dependency-name: astro
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: npm
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -14,9 +14,9 @@
     "lintfix": "prettier --write ."
   },
   "dependencies": {
-    "@astrojs/sitemap": "^3.7.1",
+    "@astrojs/sitemap": "^3.7.2",
     "@astrojs/starlight": "^0.38.2",
-    "astro": "^6.0.8",
+    "astro": "^6.1.1",
     "sharp": "^0.34.5"
   },
   "devDependencies": {