Bump mongoose from 5.7.5 to 5.13.20 in /frameworks/JavaScript/koa (#8383)

Bumps [mongoose](https://github.com/Automattic/mongoose) from 5.7.5 to 5.13.20.
- [Release notes](https://github.com/Automattic/mongoose/releases)
- [Changelog](https://github.com/Automattic/mongoose/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Automattic/mongoose/compare/5.7.5...5.13.20)

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

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

frameworks/JavaScript/koa/package.json

@@ -11,7 +11,7 @@
     "koa-bodyparser": "4.2.0",
     "koa-hbs": "1.0.0",
     "koa-router": "7.4.0",
-    "mongoose": "5.7.5",
+    "mongoose": "5.13.20",
     "mysql2": "1.5.3",
     "pg": "8.5.1",
     "pg-hstore": "2.3.2",