Bump actions/checkout from 4.1.1 to 4.1.2 #17

Job	Run time
PHP 8.2 on ubuntu-latest w/ install	12s
PHP 8.2 on ubuntu-latest w/ update	16s
PHP 8.2 on windows-latest w/ install	35s
PHP 8.2 on windows-latest w/ update	37s
PHP 8.2 on macOS-latest w/ install	1m 27s
PHP 8.2 on macOS-latest w/ update	1m 50s
PHP 8.3 on ubuntu-latest w/ install	19s
PHP 8.3 on ubuntu-latest w/ update	14s
PHP 8.3 on windows-latest w/ install	34s
PHP 8.3 on windows-latest w/ update	36s
PHP 8.3 on macOS-latest w/ install	1m 43s
PHP 8.3 on macOS-latest w/ update	1m 53s
PHP 8.4 on ubuntu-latest w/ install	13s
PHP 8.4 on ubuntu-latest w/ update	13s
PHP 8.4 on windows-latest w/ install	37s
PHP 8.4 on windows-latest w/ update	40s
PHP 8.4 on macOS-latest w/ install	1m 35s
PHP 8.4 on macOS-latest w/ update	1m 30s
	15m 4s

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