fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-MONGOOSE-472486

Author: snyk-bot

package-lock.json

@@ -40,7 +40,7 @@
     "fastify-swagger": "^1.2.0",
     "http": "0.0.0",
     "lodash": "^4.17.13",
-    "mongoose": "^5.4.12",
+    "mongoose": "^5.7.5",
     "uuid": "^3.3.2",
     "winston": "^3.2.1"
   },