Add helper-type for XPath queries #1442

Job	Run time
PHP-Linter (8.5) / linter	10s
Linter / yaml-linter	6s
Linter / json-linter	25s
Linter / style-linter	-1s
Linter / ecmascript-linter	-1s
Unit tests, PHP 8.5, windows-latest	52s
Unit tests, PHP 8.5, ubuntu-latest	19s
Quality control	0s
Security checks	0s
Code coverage	0s
Cleanup artifacts	0s
	1m 50s

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