fix: upgrade posthog-js from 1.376.0 to 1.376.4

Snyk has created this PR to upgrade posthog-js from 1.376.0 to 1.376.4.

See this package in npm:
posthog-js

See this project in Snyk:
https://app.eu.snyk.io/org/lasuite-dinum-default/project/96ea03d8-8d09-493d-86bf-363f274e129e?utm_source=github&utm_medium=referral&page=upgrade-pr

src/frontend/package.json

@@ -37,7 +37,7 @@
     "i18next-parser": "9.4.0",
     "i18next-resources-to-backend": "1.2.1",
     "livekit-client": "2.19.0",
-    "posthog-js": "1.376.0",
+    "posthog-js": "1.376.4",
     "react": "18.3.1",
     "react-aria-components": "1.14.0",
     "react-dom": "18.3.1",