🔒️(mail) fix vulnerabilities in src/mail/package.json

Upgrade dependencies to fix the following reported vulnerability:

* https://snyk.io/vuln/SNYK-JS-DEEPMERGETS-18912249

src/mail/package.json

@@ -4,7 +4,7 @@
   "description": "An util to generate html and text django's templates from mjml templates",
   "type": "module",
   "dependencies": {
-    "@html-to/text-cli": "0.6.0",
+    "@html-to/text-cli": "0.6.1",
     "mjml": "5.4.0"
   },
   "private": true,