Add memcached to PHP 8.3/8.4 and update everywhere else #176

Job	Run time
Check for uncommitted changes	8s
PHP 7.2 Image	3m 7s
PHP 7.3 Image	3m 13s
PHP 7.4 Image	2m 56s
PHP 8.0 Image	3m 8s
PHP 8.1 Image	3m 1s
PHP 8.2 Image	3m 5s
PHP 8.3 Image	3m 7s
PHP 8.4 Image	2m 53s
CLI on PHP ${{ matrix.php }}	0s
PHPUnit on PHP ${{ matrix.php }}	0s
PHPUnit ${{ matrix.phpunit }}	0s
	24m 38s

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