Bump the npm group with 3 updates (#74)

Bumps the npm group with 3 updates: [@astrojs/markdown-remark](https://github.com/withastro/astro/tree/HEAD/packages/markdown/remark), [@astrojs/rss](https://github.com/withastro/astro/tree/HEAD/packages/astro-rss) and [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `@astrojs/markdown-remark` from 6.3.8 to 6.3.9
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/markdown/remark/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/[email protected]/packages/markdown/remark)

Updates `@astrojs/rss` from 4.0.13 to 4.0.14
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro-rss/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/[email protected]/packages/astro-rss)

Updates `astro` from 5.15.8 to 5.16.0
- [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/[email protected]/packages/astro)

---
updated-dependencies:
- dependency-name: "@astrojs/markdown-remark"
  dependency-version: 6.3.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: npm
- dependency-name: "@astrojs/rss"
  dependency-version: 4.0.14
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: npm
- dependency-name: astro
  dependency-version: 5.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: npm
...

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

Author: dependabot[bot]

package-lock.json

@@ -13,13 +13,13 @@
   },
   "dependencies": {
     "@astrojs/check": "^0.9.5",
-    "@astrojs/markdown-remark": "^6.3.8",
-    "@astrojs/rss": "^4.0.13",
+    "@astrojs/markdown-remark": "^6.3.9",
+    "@astrojs/rss": "^4.0.14",
     "@astrojs/sitemap": "^3.6.0",
     "@astrojs/starlight": "^0.36.2",
     "@astrojs/starlight-tailwind": "^4.0.2",
     "@tailwindcss/vite": "^4.1.17",
-    "astro": "^5.15.8",
+    "astro": "^5.16.0",
     "astro-robots-txt": "^1.0.0",
     "clsx": "^2.1.1",
     "hast": "^1.0.0",