[11.x] Add some tests to `SupportStrTest` #38325

Job	Run time
PHP 8.2 - PHPUnit 10.5 - prefer-lowest	2m 13s
PHP 8.2 - PHPUnit 10.5 - prefer-lowest - Windows	5m 31s
PHP 8.2 - PHPUnit 10.5 - prefer-stable	2m 17s
PHP 8.2 - PHPUnit 10.5 - prefer-stable - Windows	4m 5s
PHP 8.2 - PHPUnit 11.0.1 - prefer-lowest	2m 31s
PHP 8.2 - PHPUnit 11.0.1 - prefer-lowest - Windows	5m 54s
PHP 8.2 - PHPUnit 11.0.1 - prefer-stable	2m 26s
PHP 8.2 - PHPUnit 11.0.1 - prefer-stable - Windows	3m 59s
PHP 8.3 - PHPUnit 10.5 - prefer-lowest	2m 18s
PHP 8.3 - PHPUnit 10.5 - prefer-lowest - Windows	5m 43s
PHP 8.3 - PHPUnit 10.5 - prefer-stable	3m 8s
PHP 8.3 - PHPUnit 10.5 - prefer-stable - Windows	5m 41s
PHP 8.3 - PHPUnit 11.0.1 - prefer-lowest	2m 31s
PHP 8.3 - PHPUnit 11.0.1 - prefer-stable	2m 37s
PHP 8.3 - PHPUnit 11.0.1 - prefer-lowest - Windows	4m 0s
PHP 8.3 - PHPUnit 11.0.1 - prefer-stable - Windows	4m 1s
	58m 55s

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