build(deps): bump nodemailer from 7.0.13 to 8.0.0 in /backend (#646)

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 7.0.13 to 8.0.0.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodemailer/nodemailer/compare/v7.0.13...v8.0.0)

---
updated-dependencies:
- dependency-name: nodemailer
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/package-lock.json

@@ -13,7 +13,7 @@
         "@types/jest": "^30.0.0",
         "@types/nodemailer": "^7.0.9",
         "fastify": "^5.7.2",
-        "nodemailer": "^7.0.13",
+        "nodemailer": "^8.0.1",
         "ts-dotenv": "^0.9.1"
       },
       "devDependencies": {
@@ -8872,9 +8872,9 @@
       "license": "MIT"
     },
     "node_modules/nodemailer": {
-      "version": "7.0.13",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.13.tgz",
-      "integrity": "sha512-PNDFSJdP+KFgdsG3ZzMXCgquO7I6McjY2vlqILjtJd0hy8wEvtugS9xKRF2NWlPNGxvLCXlTNIae4serI7dinw==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-8.0.1.tgz",
+      "integrity": "sha512-5kcldIXmaEjZcHR6F28IKGSgpmZHaF1IXLWFTG+Xh3S+Cce4MiakLtWY+PlBU69fLbRa8HlaGIrC/QolUpHkhg==",
       "license": "MIT-0",
       "engines": {
         "node": ">=6.0.0"

backend/package.json

@@ -31,7 +31,7 @@
     "@types/jest": "^30.0.0",
     "@types/nodemailer": "^7.0.9",
     "fastify": "^5.7.2",
-    "nodemailer": "^7.0.13",
+    "nodemailer": "^8.0.1",
     "ts-dotenv": "^0.9.1"
   },
   "jest": {