Update to supported versions

[stephanvierkant]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 7742771606

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.1%) to 99.856%

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Files with Coverage Reduction	New Missed Lines	%
src/Entities/DataAbstract.php	1	97.22%

Totals
Change from base Build 1981427975:	-0.1%
Covered Lines:	694
Relevant Lines:	695

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💛 - Coveralls

[Copilot]

Pull request overview

This PR updates dependency version constraints to support newer versions of key dependencies.

Changes:

• Adds support for psr/cache ^3.0
• Updates symfony/event-dispatcher to support versions ^8.0, ^7.4, and ^6.4 (removing support for older versions)
• Updates symfony/cache to support versions ^8.0, ^7.4, and ^6.4 (removing support for ^4.3)

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[Copilot]

The version constraint ^8.0 || ^7.4 || ^6.4 for symfony/event-dispatcher is incompatible with the current codebase. The code extends Symfony\Component\EventDispatcher\GenericEvent (see src/Observability/Events/ObservableEventAbstract.php:7-9), which was deprecated in Symfony 6.1 and removed in Symfony 7.0. This means the code will not work with Symfony 7.x or 8.x versions. Before updating to these versions, the codebase needs to be refactored to stop using GenericEvent and use the Event class from symfony/contracts instead.

Suggested change

	"symfony/event-dispatcher": "^8.0 || ^7.4 || ^6.4",
	"symfony/event-dispatcher": "^6.4",