Bump @11ty/eleventy-plugin-rss from 2.0.4 to 3.0.0 (#172)

Bumps [@11ty/eleventy-plugin-rss](https://github.com/11ty/eleventy-plugin-rss) from 2.0.4 to 3.0.0.
- [Release notes](https://github.com/11ty/eleventy-plugin-rss/releases)
- [Commits](11ty/eleventy-plugin-rss@v2.0.4...v3.0.0)

---
updated-dependencies:
- dependency-name: "@11ty/eleventy-plugin-rss"
  dependency-version: 3.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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package-lock.json

@@ -14,7 +14,7 @@
   },
   "devDependencies": {
     "@11ty/eleventy": "^3.1.2",
-    "@11ty/eleventy-plugin-rss": "^2.0.4",
+    "@11ty/eleventy-plugin-rss": "^3.0.0",
     "@11ty/eleventy-plugin-syntaxhighlight": "^5.0.2",
     "eleventy-plugin-og-image": "^4.2.1",
     "prettier": "^3.8.1"