Bump dayjs from 1.11.4 to 1.11.6 in /api

Bumps [dayjs](https://github.com/iamkun/dayjs) from 1.11.4 to 1.11.6.
- [Release notes](https://github.com/iamkun/dayjs/releases)
- [Changelog](https://github.com/iamkun/dayjs/blob/v1.11.6/CHANGELOG.md)
- [Commits](iamkun/dayjs@v1.11.4...v1.11.6)

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

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

Author: dependabot[bot]

api/package-lock.json

@@ -21,7 +21,7 @@
     "@fastify/cors": "^8.1.0",
     "argon2": "^0.28.7",
     "bson": "^4.6.4",
-    "dayjs": "^1.11.4",
+    "dayjs": "^1.11.6",
     "dompurify": "^2.4.0",
     "express-mongo-sanitize": "^2.2.0",
     "fastify": "^4.10.2",