chore(deps): update dependency mongoose to v5.12.4

Author: renovate-bot

package-lock.json

@@ -36,7 +36,7 @@
     "husky": "6.0.0",
     "jest": "26.6.3",
     "lint-staged": "10.5.4",
-    "mongoose": "5.12.3",
+    "mongoose": "5.12.4",
     "prettier": "2.2.1",
     "reflect-metadata": "0.1.13",
     "release-it": "14.6.1",