refactor: Apply code best practices PHP8+ #439

Job	Run time
changes	5s
Integration php8.0-mysql-stable28	3m 52s
Integration php8.0-mysql-stable29	3m 27s
Integration php8.1-mysql-master	3m 39s
Integration php8.2-mysql-stable28	4m 4s
Integration php8.3-mysql-stable28	3m 38s
Integration php8.3-mysql-stable29	3m 40s
Integration php8.3-mysql-stable30	4m 0s
Integration php8.3-mysql-master	3m 50s
Integration php8.2-sqlite-stable28	3m 45s
Integration php8.2-pgsql-stable28	4m 5s
integration-summary	8s
	38m 13s

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