Update for PHP 8.1+ #194

Job	Run time
Coding Standard & Static Analysis	32s
testsuite (8.1, highest)	21s
testsuite (8.2, highest)	1m 13s
testsuite (8.3, highest)	18s
testsuite (8.4, highest)	29s
testsuite (8.1, lowest)	29s
	3m 22s

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