chore(deps)(deps): bump pg from 8.20.0 to 8.21.0 in /apps/api

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
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

apps/api/bun.lock

@@ -68,7 +68,7 @@
     "ioredis": "5.10.1",
     "nodemailer": "8.0.7",
     "openai": "6.37.0",
-    "pg": "8.20.0",
+    "pg": "8.21.0",
     "pino": "10.3.1",
     "pino-pretty": "13.1.3",
     "postgres": "3.4.9",