Add memcached to PHP 8.3/8.4 and update everywhere else #174

Job	Run time
Check for uncommitted changes	51s
PHP 7.2 Image	3m 2s
PHP 7.3 Image	3m 2s
PHP 7.4 Image	3m 0s
PHP 8.0 Image	3m 2s
PHP 8.1 Image	3m 1s
PHP 8.2 Image	3m 0s
PHP 8.3 Image	2m 45s
PHP 8.4 Image	3m 2s
PHPUnit on PHP ${{ matrix.php }}	0s
PHPUnit ${{ matrix.phpunit }}	0s
CLI on PHP ${{ matrix.php }}	0s
	24m 45s

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