Raise minimum level php enum

[DannyvdSluijs]

This pull request includes updates to dependencies and configuration for the project. The most important changes include raising the minimum required version for marc-mabe/php-enum and adding PHP 8.4 to the workflow.

Dependency updates:

• composer.json: Raised the minimum required version of marc-mabe/php-enum to ^4.0

Documentation updates:

• CHANGELOG.md: Added an entry for raising the minimum level of marc-mabe/php-enum

[Copilot]

Copilot reviewed 1 out of 2 changed files in this pull request and generated no suggestions.

Files not reviewed (1)

• composer.json: Language not supported