tests

Merge preserving keys only one level deep (#51516) #208

Job	Run time
PHP 8.2 - PHPUnit 10.5 - prefer-lowest	2m 21s
PHP 8.2 - PHPUnit 10.5 - prefer-lowest - Windows	2m 19s
PHP 8.2 - PHPUnit 10.5 - prefer-stable	2m 19s
PHP 8.2 - PHPUnit 10.5 - prefer-stable - Windows	2m 31s
PHP 8.2 - PHPUnit 11.0.1 - prefer-lowest	2m 27s
PHP 8.2 - PHPUnit 11.0.1 - prefer-lowest - Windows	2m 13s
PHP 8.2 - PHPUnit 11.0.1 - prefer-stable	2m 32s
PHP 8.2 - PHPUnit 11.0.1 - prefer-stable - Windows	2m 29s
PHP 8.3 - PHPUnit 10.5 - prefer-lowest	2m 28s
PHP 8.3 - PHPUnit 10.5 - prefer-lowest - Windows	2m 31s
PHP 8.3 - PHPUnit 10.5 - prefer-stable	2m 17s
PHP 8.3 - PHPUnit 10.5 - prefer-stable - Windows	2m 25s
PHP 8.3 - PHPUnit 11.0.1 - prefer-lowest	2m 41s
PHP 8.3 - PHPUnit 11.0.1 - prefer-lowest - Windows	2m 34s
PHP 8.3 - PHPUnit 11.0.1 - prefer-stable	2m 31s
PHP 8.3 - PHPUnit 11.0.1 - prefer-stable - Windows	2m 33s
	39m 11s

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