fix: upgrade dotenv from 16.4.1 to 16.4.2

Snyk has created this PR to upgrade dotenv from 16.4.1 to 16.4.2.

See this package in npm:
https://www.npmjs.com/package/dotenv

See this project in Snyk:
https://app.snyk.io/org/chrishubert/project/8df8ff77-c57c-4c15-83f4-18d791bf3bb3?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "axios": "^1.6.5",
-    "dotenv": "^16.3.1",
+    "dotenv": "^16.4.2",
     "express": "^4.18.2",
     "express-rate-limit": "^6.11.2",
     "qr-image": "^3.2.0",