Adopt SSP coding-style #642

Job	Run time
PHP-Linter (8.2) / linter	12s
PHP-Linter (8.4) / linter	13s
Linter / ecmascript-linter	17s
Linter / yaml-linter	4s
Linter / json-linter	28s
PHP-Linter (8.3) / linter	16s
PHP-Linter (8.5) / linter	16s
Linter / style-linter	0s
Unit tests, PHP 8.5, ubuntu-latest	28s
Unit tests, PHP 8.3, ubuntu-latest	25s
Unit tests, PHP 8.2, ubuntu-latest	20s
Unit tests, PHP 8.4, ubuntu-latest	29s
Unit tests, PHP 8.2, windows-latest	1m 8s
Unit tests, PHP 8.4, windows-latest	53s
Unit tests, PHP 8.3, windows-latest	1m 9s
Unit tests, PHP 8.5, windows-latest	56s
Security checks	23s
Quality control	27s
Code coverage	8s
Cleanup artifacts	3s
	8m 35s

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