Bump actions/cache from 4.0.2 to 4.2.0 #253

Job	Run time
PHP 8.3 on ubuntu-latest w/ install	10s
PHP 8.3 on ubuntu-latest w/ update	15s
PHP 8.3 on windows-latest w/ install	38s
PHP 8.3 on windows-latest w/ update	46s
PHP 8.3 on macOS-latest w/ install	1m 22s
PHP 8.3 on macOS-latest w/ update	1m 19s
PHP 8.4 on ubuntu-latest w/ install	11s
PHP 8.4 on ubuntu-latest w/ update	11s
PHP 8.4 on windows-latest w/ install	32s
PHP 8.4 on windows-latest w/ update	47s
PHP 8.4 on macOS-latest w/ install	1m 24s
PHP 8.4 on macOS-latest w/ update	1m 17s
PHP 8.5 on ubuntu-latest w/ install	18s
PHP 8.5 on ubuntu-latest w/ update	32s
PHP 8.5 on windows-latest w/ install	36s
PHP 8.5 on windows-latest w/ update	37s
PHP 8.5 on macOS-latest w/ install	1m 26s
PHP 8.5 on macOS-latest w/ update	1m 18s
	13m 39s

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