chore(deps): bump loopback-connector-mongodb in /api-server

Bumps [loopback-connector-mongodb](https://github.com/loopbackio/loopback-connector-mongodb) from 4.2.0 to 6.1.0.
- [Release notes](https://github.com/loopbackio/loopback-connector-mongodb/releases)
- [Changelog](https://github.com/loopbackio/loopback-connector-mongodb/blob/master/CHANGES.md)
- [Commits](loopbackio/loopback-connector-mongodb@v4.2.0...v6.1.0)

---
updated-dependencies:
- dependency-name: loopback-connector-mongodb
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

api-server/package.json

@@ -41,7 +41,7 @@
     "lodash": "^4.17.20",
     "loopback": "^3.27.0",
     "loopback-boot": "^2.28.0",
-    "loopback-connector-mongodb": "^4.2.0",
+    "loopback-connector-mongodb": "^6.1.0",
     "method-override": "^3.0.0",
     "moment": "^2.29.1",
     "moment-timezone": "^0.5.31",