Tests: improve Windows compatibility (#518) #819

Job	Run time
code-quality / PHPCS	21s
code-quality / PHPStan	28s
code-quality / Lint Gherkin Feature files	12s
code-quality / Lint GitHub Actions workflows	7s
code-quality / Spell check	5s
code-quality / Lint PHP files	20s
	1m 33s

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