Tests

Bump phpunit/phpunit from 10.5.16 to 10.5.19 #38

Job	Run time
PHP 8.2 on ubuntu-latest w/ install	15s
PHP 8.2 on ubuntu-latest w/ update	18s
PHP 8.2 on windows-latest w/ install	36s
PHP 8.2 on windows-latest w/ update	33s
PHP 8.2 on macOS-latest w/ install	58s
PHP 8.2 on macOS-latest w/ update	39s
PHP 8.3 on ubuntu-latest w/ install	15s
PHP 8.3 on ubuntu-latest w/ update	17s
PHP 8.3 on windows-latest w/ install	33s
PHP 8.3 on windows-latest w/ update	35s
PHP 8.3 on macOS-latest w/ install	32s
PHP 8.3 on macOS-latest w/ update	31s
PHP 8.4 on ubuntu-latest w/ install	12s
PHP 8.4 on ubuntu-latest w/ update	18s
PHP 8.4 on windows-latest w/ install	30s
PHP 8.4 on windows-latest w/ update	30s
PHP 8.4 on macOS-latest w/ install	1m 14s
PHP 8.4 on macOS-latest w/ update	55s
	9m 41s

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