Update for PHP 8.1+ #192

Job	Run time
Coding Standard & Static Analysis	23s
testsuite (8.1, highest)	29s
testsuite (8.2, highest)	29s
testsuite (8.3, highest)	21s
testsuite (8.4, highest)	19s
testsuite (8.1, lowest)	29s
	2m 30s

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