meta: bump feed from 5.2.0 to 5.2.1 (#8946)

Bumps [feed](https://github.com/jpmonette/feed) from 5.2.0 to 5.2.1.
- [Release notes](https://github.com/jpmonette/feed/releases)
- [Commits](jpmonette/feed@5.2.0...5.2.1)

---
updated-dependencies:
- dependency-name: feed
  dependency-version: 5.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

apps/site/package.json

@@ -55,7 +55,7 @@
     "@vercel/speed-insights": "~2.0.0",
     "classnames": "catalog:",
     "cross-env": "catalog:",
-    "feed": "~5.2.0",
+    "feed": "~5.2.1",
     "github-slugger": "~2.0.0",
     "gray-matter": "~4.0.3",
     "mdast-util-to-string": "^4.0.0",