refactor: Apply code best practices PHP8+ #436

Job	Run time
changes	5s
Integration php8.0-mysql-stable28	3m 32s
Integration php8.0-mysql-stable29	3m 57s
Integration php8.1-mysql-master	3m 54s
Integration php8.2-mysql-stable28	4m 7s
Integration php8.3-mysql-stable28	4m 1s
Integration php8.3-mysql-stable29	4m 4s
Integration php8.3-mysql-stable30	3m 38s
Integration php8.3-mysql-master	3m 38s
Integration php8.2-sqlite-stable28	3m 57s
Integration php8.2-pgsql-stable28	3m 34s
integration-summary	5s
	38m 32s

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