Add xDebug to PHP 8.4 container. #169

Job	Run time
Check for uncommitted changes	9s
PHP 7.2 Image	3m 53s
PHP 7.3 Image	3m 47s
PHP 7.4 Image	3m 24s
PHP 8.0 Image	3m 51s
PHP 8.1 Image	3m 21s
PHP 8.2 Image	3m 33s
PHP 8.3 Image	3m 30s
PHP 8.4 Image	3m 37s
PHPUnit on PHP 7.2	18s
PHPUnit on PHP 7.3	24s
PHPUnit 8-php-7.2	18s
CLI on PHP 7.2	23s
PHPUnit on PHP 7.4	19s
PHPUnit 7-php-7.2	18s
PHPUnit on PHP 8.0	24s
CLI on PHP 7.3	23s
PHPUnit 6-php-7.2	23s
CLI on PHP 7.4	23s
PHPUnit on PHP 8.1	23s
PHPUnit 9-php-7.3	19s
PHPUnit 8-php-7.3	19s
CLI on PHP 8.0	22s
PHPUnit on PHP 8.2	25s
PHPUnit on PHP 8.3	33s
CLI on PHP 8.1	25s
PHPUnit 7-php-7.3	20s
CLI on PHP 8.2	21s
PHPUnit 6-php-7.3	46s
PHPUnit on PHP 8.4	23s
PHPUnit 9-php-7.4	23s
CLI on PHP 8.3	21s
PHPUnit 8-php-7.4	21s
CLI on PHP 8.4	24s
PHPUnit 7-php-7.4	20s
PHPUnit 9-php-8.0	21s
PHPUnit 8-php-8.0	24s
PHPUnit 9-php-8.1	17s
PHPUnit 8-php-8.1	17s
PHPUnit 9-php-8.2	17s
PHPUnit 8-php-8.2	18s
PHPUnit 9-php-8.3	23s
	41m 20s

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