Tests

Bump phpunit/phpunit from 10.5.16 to 10.5.20 #30

Job	Run time
PHP 8.2 on ubuntu-latest w/ install	15s
PHP 8.2 on ubuntu-latest w/ update	15s
PHP 8.2 on windows-latest w/ install	37s
PHP 8.2 on windows-latest w/ update	40s
PHP 8.2 on macOS-latest w/ install	1m 10s
PHP 8.2 on macOS-latest w/ update	1m 13s
PHP 8.3 on ubuntu-latest w/ install	15s
PHP 8.3 on ubuntu-latest w/ update	12s
PHP 8.3 on windows-latest w/ install	35s
PHP 8.3 on windows-latest w/ update	35s
PHP 8.3 on macOS-latest w/ install	1m 15s
PHP 8.3 on macOS-latest w/ update	1m 15s
PHP 8.4 on ubuntu-latest w/ install	13s
PHP 8.4 on ubuntu-latest w/ update	12s
PHP 8.4 on windows-latest w/ install	36s
PHP 8.4 on windows-latest w/ update	45s
PHP 8.4 on macOS-latest w/ install	1m 13s
PHP 8.4 on macOS-latest w/ update	1m 11s
	12m 27s

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