Tests

Bump phpunit/phpunit from 10.5.11 to 10.5.15 #27

Job	Run time
PHP 8.2 on ubuntu-latest w/ install	12s
PHP 8.2 on ubuntu-latest w/ update	14s
PHP 8.2 on windows-latest w/ install	41s
PHP 8.2 on windows-latest w/ update	38s
PHP 8.2 on macOS-latest w/ install	1m 31s
PHP 8.2 on macOS-latest w/ update	2m 6s
PHP 8.3 on ubuntu-latest w/ install	12s
PHP 8.3 on ubuntu-latest w/ update	19s
PHP 8.3 on windows-latest w/ install	33s
PHP 8.3 on windows-latest w/ update	33s
PHP 8.3 on macOS-latest w/ install	2m 5s
PHP 8.3 on macOS-latest w/ update	2m 7s
PHP 8.4 on ubuntu-latest w/ install	19s
PHP 8.4 on ubuntu-latest w/ update	19s
PHP 8.4 on windows-latest w/ install	33s
PHP 8.4 on windows-latest w/ update	34s
PHP 8.4 on macOS-latest w/ install	1m 36s
PHP 8.4 on macOS-latest w/ update	1m 54s
	16m 26s

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