refactor: Apply code best practices PHP8+ #435

Job	Run time
changes	5s
Integration php8.0-mysql-stable28	3m 24s
Integration php8.0-mysql-stable29	3m 23s
Integration php8.1-mysql-master	3m 52s
Integration php8.2-mysql-stable28	4m 4s
Integration php8.3-mysql-stable28	3m 49s
Integration php8.3-mysql-stable29	3m 32s
Integration php8.3-mysql-stable30	3m 34s
Integration php8.3-mysql-master	3m 34s
Integration php8.2-sqlite-stable28	4m 2s
Integration php8.2-pgsql-stable28	3m 32s
integration-summary	5s
	36m 56s

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