chore(deps-dev): Bump pg from 8.20.0 to 8.21.0 (#229)

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:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -108,7 +108,7 @@
     "eslint-config-next": "16.2.6",
     "knip": "^6.14.2",
     "pdf-parse": "^2.4.5",
-    "pg": "^8.20.0",
+    "pg": "^8.21.0",
     "prettier": "^3.8.3",
     "prettier-plugin-tailwindcss": "^0.8.0",
     "shadcn": "^4.9.0",