Fix unit-test #107

Job	Run time
PHP-Linter (8.1) / linter	9s
Linter / json-linter	25s
Linter / yaml-linter	5s
PHP-Linter (8.4) / linter	8s
PHP-Linter (8.3) / linter	9s
PHP-Linter (8.2) / linter	13s
Linter / style-linter	0s
Linter / ecmascript-linter	0s
Unit tests, PHP 8.1, windows-latest	51s
Unit tests, PHP 8.2, ubuntu-latest	27s
Unit tests, PHP 8.1, ubuntu-latest	21s
Unit tests, PHP 8.3, windows-latest	51s
Unit tests, PHP 8.3, ubuntu-latest	17s
Unit tests, PHP 8.2, windows-latest	51s
Quality control	20s
Security checks	16s
Code coverage	8s
Cleanup artifacts	5s
	5m 36s

Provide feedback