Bump mongoose from 5.1.5 to 5.7.5 in /JavaScript/SimpleRESTapi

Bumps [mongoose](https://github.com/Automattic/mongoose) from 5.1.5 to 5.7.5.
- [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/5.1.5...5.7.5)

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

JavaScript/SimpleRESTapi/package.json

@@ -14,6 +14,6 @@
   },
   "dependencies": {
     "express": "^4.16.3",
-    "mongoose": "^5.1.5"
+    "mongoose": "^5.7.5"
   }
 }