Cleanup unit tests #1523

Job	Run time
Linter / json-linter	27s
Linter / yaml-linter	6s
PHP-Linter (8.5) / linter	13s
PHP-Linter (8.2) / linter	25s
PHP-Linter (8.3) / linter	18s
Linter / ecmascript-linter	0s
PHP-Linter (8.4) / linter	18s
Linter / style-linter	-7s
Unit tests, PHP 8.2, windows-latest	1m 1s
Unit tests, PHP 8.5, windows-latest	53s
Unit tests, PHP 8.3, windows-latest	54s
Unit tests, PHP 8.4, windows-latest	52s
Unit tests, PHP 8.4, ubuntu-latest	19s
Unit tests, PHP 8.2, ubuntu-latest	23s
Unit tests, PHP 8.5, ubuntu-latest	35s
Unit tests, PHP 8.3, ubuntu-latest	25s
Quality control	37s
Security checks	17s
Code coverage	8s
Cleanup artifacts	6s
	8m 10s

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