Build(deps): bump pg from 8.20.0 to 8.21.0 (#275)

Bumps [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg) from 8.20.0 to 8.21.0.
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.21.0/packages/pg)

---
updated-dependencies:
- dependency-name: pg
  dependency-version: 8.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -30,7 +30,7 @@
     "astro": "^6.3.6",
     "clsx": "^2.1.1",
     "framer-motion": "^12.39.0",
-    "pg": "^8.20.0",
+    "pg": "^8.21.0",
     "react": "^19.2.6",
     "react-dom": "^19.2.6",
     "tailwind-merge": "^3.6.0",