🪲 [Fix]: Fix nightly run issues

[Marius Storhaug (MariusStorhaug)]

Description

This pull request includes several changes to the scripts/main.ps1 file to enhance error handling and improve the script's behavior when it is not run for a pull request.

Error handling improvements:

• Added a try block at the beginning of the script to encapsulate the main logic and a catch block at the end to throw any caught exceptions. [1] [2]

Behavior improvements for non-pull request events:

• Added a check to determine if the event is not a pull request and exit the script with a warning message if it is not.

Type of change

• 📖 [Docs]
• 🪲 [Fix]
• 🩹 [Patch]
• ⚠️ [Security fix]
• 🚀 [Feature]
• 🌟 [Breaking change]

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas