[BUG] Notification error 500 on clean install

[remygrandin]

If you have problems with the installation please use our community forum

What set up are you using

• Cloud Hosted Version
• Self Hosted

Describe the bug
Without PHPUnit installed, a large error 500 block half the screen

To Reproduce
Steps to reproduce the behavior:

1. Install on a clean ubuntu server 22.04
2. connect to leantime
3. A large error 500 in the top right corner block usage of underneath componenets

Expected behavior
No error

Leantime Version
3.1.4

Server
nginx

Additional context
Logs show php stack trace of :

Error: Call to undefined function PHPUnit\Framework\throwException() in /opt/leantime/app/Domain/Notifications/Services/News.php:103

When installing phpunit via apt and restarting nginx, the error disapear.

phpunit should probably be listed in the required dependency of the repo readme install section