Bump dotenv from 16.6.1 to 17.4.2 in /backend

Bumps [dotenv](https://github.com/motdotla/dotenv) from 16.6.1 to 17.4.2.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](https://github.com/motdotla/dotenv/compare/v16.6.1...v17.4.2)

---
updated-dependencies:
- dependency-name: dotenv
  dependency-version: 17.4.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

backend/package-lock.json

@@ -13,7 +13,7 @@
         "bullmq": "^5.1.1",
         "compression": "^1.7.4",
         "cors": "^2.8.5",
-        "dotenv": "^16.3.1",
+        "dotenv": "^17.4.2",
         "express": "^4.18.2",
         "express-async-errors": "^3.1.1",
         "helmet": "^7.1.0",
@@ -1730,9 +1730,9 @@
       }
     },
     "node_modules/dotenv": {
-      "version": "16.6.1",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.6.1.tgz",
-      "integrity": "sha512-uBq4egWHTcTt33a72vpSG0z3HnPuIl6NqYcTrKEg2azoEyl2hpW0zqlxysq2pK9HlDIHyHyakeYaYnSAwd8bow==",
+      "version": "17.4.2",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.4.2.tgz",
+      "integrity": "sha512-nI4U3TottKAcAD9LLud4Cb7b2QztQMUEfHbvhTH09bqXTxnSie8WnjPALV/WMCrJZ6UV/qHJ6L03OqO3LcdYZw==",
       "license": "BSD-2-Clause",
       "engines": {
         "node": ">=12"