fix: upgrade mailparser from 3.6.7 to 3.7.1

Snyk has created this PR to upgrade mailparser from 3.6.7 to 3.7.1.

See this package in npm:
mailparser

See this project in Snyk:
https://app.snyk.io/org/dmgcoder/project/178579df-b0ef-4c0a-b8c2-4dfa962f3ef5?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -51,7 +51,7 @@
     "imap-simple": "^1.6.3",
     "isomorphic-fetch": "^3.0.0",
     "luxon": "^3.4.4",
-    "mailparser": "^3.6.4",
+    "mailparser": "^3.7.1",
     "nestjs-easyconfig": "^2.7.1",
     "nestjs-session": "^2.0.0",
     "nodemailer": "^6.9.2",