chore(deps): update dependency mongoose to v6.0.15

Author: renovate-bot

package-lock.json

@@ -37,7 +37,7 @@
     "husky": "7.0.4",
     "jest": "27.4.3",
     "lint-staged": "12.1.2",
-    "mongoose": "6.0.14",
+    "mongoose": "6.0.15",
     "prettier": "2.5.1",
     "reflect-metadata": "0.1.13",
     "release-it": "14.11.8",