refactor: Apply code best practices PHP8+ #442

Job	Run time
changes	2s
Integration php8.0-mysql-stable28	4m 2s
Integration php8.0-mysql-stable29	3m 53s
Integration php8.1-mysql-master	4m 0s
Integration php8.2-mysql-stable28	4m 9s
Integration php8.3-mysql-stable28	3m 33s
Integration php8.3-mysql-stable29	3m 38s
Integration php8.3-mysql-stable30	3m 44s
Integration php8.3-mysql-master	3m 47s
Integration php8.2-sqlite-stable28	3m 28s
Integration php8.2-pgsql-stable28	4m 12s
integration-summary	4s
	38m 32s

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