Bump mongoose from 6.2.8 to 6.4.6 (#22)

Bumps [mongoose](https://github.com/Automattic/mongoose) from 6.2.8 to 6.4.6.
- [Release notes](https://github.com/Automattic/mongoose/releases)
- [Changelog](https://github.com/Automattic/mongoose/blob/master/CHANGELOG.md)
- [Commits](Automattic/mongoose@6.2.8...6.4.6)

---
updated-dependencies:
- dependency-name: mongoose
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -14,7 +14,7 @@
     "express": "^4.17.3",
     "express-handlebars": "5.3.1",
     "handlebars": "^4.7.7",
-    "mongoose": "^6.2.2",
+    "mongoose": "^6.4.6",
     "morgan": "^1.10.0",
     "postcss": "^8.4.6",
     "postcss-cli": "^9.1.0",