build(deps): bump @astrojs/rss from 4.0.11 to 4.0.12

Bumps [@astrojs/rss](https://github.com/withastro/astro/tree/HEAD/packages/astro-rss) from 4.0.11 to 4.0.12.
- [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)

---
updated-dependencies:
- dependency-name: "@astrojs/rss"
  dependency-version: 4.0.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "@astrojs/react": "^4.3.0",
-    "@astrojs/rss": "^4.0.11",
+    "@astrojs/rss": "^4.0.12",
     "@astrojs/sitemap": "^3.2.1",
     "@giscus/react": "^3.1.0",
     "@resvg/resvg-js": "^2.6.2",