ci: bump mongoose from 8.8.4 to 8.9.0

Bumps [mongoose](https://github.com/Automattic/mongoose) from 8.8.4 to 8.9.0.
- [Release notes](https://github.com/Automattic/mongoose/releases)
- [Changelog](https://github.com/Automattic/mongoose/blob/master/CHANGELOG.md)
- [Commits](Automattic/mongoose@8.8.4...8.9.0)

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

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

package.json

@@ -26,7 +26,7 @@
     "express": "^4.21.2",
     "express-async-handler": "^1.2.0",
     "express-rate-limit": "^7.4.1",
-    "mongoose": "^8.8.4",
+    "mongoose": "^8.9.0",
     "mongoose-unique-validator": "^5.0.1",
     "prom-client": "^10.2.3",
     "redoc-express": "^2.1.0",