Fix mutation testing

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[what-the-diff]

PR Summary

• Addition of master branch to the push event

  • The system will now also keep an eye on the main ('master') branch for any changes and updates it needs to execute.

• Upgraded PHP Version to 8.3

  • The programming environment has been enhanced to use the latest PHP version. This will lead to better performance and the ability to use recent PHP features.

• Modification of Command Run parameters

  • A new parameter (--threads=2) has been added when running the vendor/bin/roave-infection-static-analysis-plugin. This improves the plugin performance by leveraging parallel processing. As a result, any analysis done by this plugin will be quicker, saving us valuable time and resources.