Bump dotenv from 8.6.0 to 16.4.5

Bumps [dotenv](https://github.com/motdotla/dotenv) from 8.6.0 to 16.4.5.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v8.6.0...v16.4.5)

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

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

frontend/package.json

@@ -29,7 +29,7 @@
     "@typescript-eslint/eslint-plugin": "^7.4.0",
     "@typescript-eslint/parser": "^7.4.0",
     "bootstrap": "^4.6.2",
-    "dotenv": "^8.2.0",
+    "dotenv": "^16.4.5",
     "eslint": "^8.38.0",
     "eslint-config-standard": "^17.0.0",
     "eslint-plugin-import": "^2.27.5",