fix(deps): update dependency dotenv to v16.6.1

Author: renovate[bot]

package-lock.json

@@ -34,7 +34,7 @@
     "@types/react-dom": "19.1.8",
     "accept-language": "3.0.20",
     "date-fns": "3.6.0",
-    "dotenv": "16.5.0",
+    "dotenv": "16.6.1",
     "eslint": "8.57.1",
     "eslint-config-next": "15.5.1",
     "i18next": "25.4.2",