Add PHP 8.4 to CI #494

Job	Run time
PHP 8.0 Test on ubuntu-latest	6m 20s
Static Analysis	25s
PHP 8.1 Test on ubuntu-latest	6m 16s
Coding Standards	14s
PHP 8.2 Test on ubuntu-latest	6m 48s
PHP 8.0 Test dev dependencies on ubuntu-latest	6m 13s
PHP 8.3 Test on ubuntu-latest	6m 57s
PHP 8.1 Test dev dependencies on ubuntu-latest	6m 40s
PHP 8.1 (phpunit 10) Test on ubuntu-latest	5m 50s
PHP 8.4 Test on ubuntu-latest	5m 40s
PHP 8.3 (lowest) Test on ubuntu-latest	6m 8s
PHP 8.2 Test dev dependencies on ubuntu-latest	6m 41s
PHP 8.2 (phpunit 10) Test on ubuntu-latest	6m 20s
PHP 8.3 Test dev dependencies on ubuntu-latest	6m 51s
PHP 8.3 Test on macos-latest	3m 3s
PHP 8.3 (phpunit 10) Test on ubuntu-latest	6m 7s
PHP 8.4 Test dev dependencies on ubuntu-latest	5m 47s
PHP 8.3 Test on windows-latest	19s
PHP 8.4 (phpunit 10) Test on ubuntu-latest	6m 23s
	1h 39m 2s

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