Bugfix/php8 issues (#337) #710

Job	Run time
PHP linter (7.1)	24s
PHP linter (7.2)	30s
PHP linter (7.3)	24s
PHP linter (7.4)	15s
PHP linter (8)	18s
PHP linter (8.1)	13s
PHP linter (8.2)	26s
Check code style (8.2, .Build/bin/php-cs-fixer fix --diff --dry-run)	34s
PHPCompatibility (7.1)	17s
Code quality checks (8.2, composer test:phpstan)	38s
PHPCompatibility (7.2)	17s
PHPUnit (^8.7, 7.1)	25s
PHPUnit (^8.7, 7.2)	23s
PHPCompatibility (7.3)	31s
PHPUnit (^9.5, 7.2)	27s
PHPUnit (^9.5, 7.3)	31s
PHPCompatibility (7.4)	22s
PHPUnit (^9.5, 7.4)	24s
PHPCompatibility (8.0)	23s
PHPUnit (^10.4, 7.2)	16s
PHPCompatibility (8.1)	42s
PHPUnit (^10.4, 7.3)	40s
PHPCompatibility (8.2)	24s
PHPUnit (^10.4, 7.4)	31s
PHPUnit (^11.5, 8)	17s
PHPUnit (^11.5, 8.1)	22s
PHPUnit (^11.5, 8.2)	16s
PHPUnit (^12.4, 8.1)	45s
PHPUnit (^12.4, 8.2)	16s
	12m 11s

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