Fix incorrect case in class name #3456

Job	Run time
PHP-Linter (8.3) / linter	11s
PHP-Linter (8.5) / linter	14s
PHP-Linter (8.4) / linter	11s
Linter / yaml-linter	7s
Linter / json-linter	26s
Linter / style-linter	0s
Linter / ecmascript-linter	0s
Unit tests, PHP 8.3, ubuntu-latest	24s
Unit tests, PHP 8.5, ubuntu-latest	25s
Unit tests, PHP 8.4, ubuntu-latest	21s
Unit tests, PHP 8.4, windows-latest	1m 1s
Unit tests, PHP 8.5, windows-latest	1m 26s
Unit tests, PHP 8.3, windows-latest	1m 25s
Security checks	20s
Quality control	36s
Code coverage	7s
Cleanup artifacts	4s
	7m 18s

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