fix: upgrade mongoose from 7.5.4 to 7.6.8

Snyk has created this PR to upgrade mongoose from 7.5.4 to 7.6.8.

See this package in npm:
https://www.npmjs.com/package/mongoose

See this project in Snyk:
https://app.snyk.io/org/ladunjexa/project/842a741c-7fd0-4ef7-a506-d95db68cdba7?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -15,7 +15,7 @@
     "eslint-config-prettier": "^9.0.0",
     "eslint-config-standard": "^17.1.0",
     "eslint-plugin-tailwindcss": "^3.13.0",
-    "mongoose": "^7.5.4",
+    "mongoose": "^7.6.8",
     "next": "13.5.4",
     "nodemailer": "^6.9.5",
     "prettier": "^3.0.3",