build(deps): bump mongoose from 5.8.11 to 5.9.2 (#11901)

Bumps [mongoose](https://github.com/Automattic/mongoose) from 5.8.11 to 5.9.2.
- [Release notes](https://github.com/Automattic/mongoose/releases)
- [Changelog](https://github.com/Automattic/mongoose/blob/master/History.md)
- [Commits](https://github.com/Automattic/mongoose/compare/5.8.11...5.9.2)

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

package.json

@@ -46,7 +46,7 @@
     "method-override": "^3.0.0",
     "moment": "^2.24.0",
     "moment-recur": "^1.0.7",
-    "mongoose": "^5.8.11",
+    "mongoose": "^5.9.2",
     "morgan": "^1.7.0",
     "nconf": "^0.10.0",
     "node-gcm": "^1.0.2",