build(deps): bump dotenv from 17.0.1 to 17.4.0 in /backend

Bumps [dotenv](https://github.com/motdotla/dotenv) from 17.0.1 to 17.4.0.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](https://github.com/motdotla/dotenv/compare/v17.0.1...v17.4.0)

---
updated-dependencies:
- dependency-name: dotenv
  dependency-version: 17.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

backend/package.json

@@ -42,7 +42,7 @@
     "body-parser": "^2.2.2",
     "cheerio": "~1.2.0",
     "cross-env": "~10.1.0",
-    "dotenv": "~17.0.1",
+    "dotenv": "~17.4.0",
     "email-templates": "^13.0.1",
     "express": "^4.22.1",
     "graphql": "^16.13.2",

backend/yarn.lock

@@ -5205,10 +5205,10 @@ dotenv@^4.0.0:
   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-4.0.0.tgz#864ef1379aced55ce6f95debecdce179f7a0cd1d"
   integrity sha512-XcaMACOr3JMVcEv0Y/iUM2XaOsATRZ3U1In41/1jjK6vJZ2PZbQ1bzCG8uvaByfaBpl9gqc9QWJovpUGBXLLYQ==
 
-dotenv@~17.0.1:
-  version "17.0.1"
-  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-17.0.1.tgz#79bc4d232fadb42a4092685ff1206d31b2a43f95"
-  integrity sha512-GLjkduuAL7IMJg/ZnOPm9AnWKJ82mSE2tzXLaJ/6hD6DhwGfZaXG77oB8qbReyiczNxnbxQKyh0OE5mXq0bAHA==
+dotenv@~17.4.0:
+  version "17.4.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-17.4.0.tgz#9a5de24d7112a889b4b179ffbe83933298c41d37"
+  integrity sha512-kCKF62fwtzwYm0IGBNjRUjtJgMfGapII+FslMHIjMR5KTnwEmBmWLDRSnc3XSNP8bNy34tekgQyDT0hr7pERRQ==
 
 dset@^3.1.2:
   version "3.1.4"