add full support of PHP 8.5 #655

Job	Run time
Build lowest version	36s
Build with upcoming PHP version	43s
PHPStan	31s
Build (8.2)	29s
Build (8.5)	23s
Build (8.1)	29s
Build (8.3)	27s
Build (8.4)	23s
Docs	1m 55s
Build (8.5)	26s
Build (8.2)	29s
Build (8.3)	27s
Build lowest version	36s
Build (8.4)	23s
Build with upcoming PHP version	43s
PHPStan	31s
Docs	1m 55s
Build (8.1)	29s
Build lowest version	36s
Build (8.2)	29s
Build (8.5)	26s
PHPStan	31s
Build with upcoming PHP version	43s
Build (8.4)	23s
Build (8.3)	27s
Build (8.1)	29s
Docs	1m 55s
	17m 54s

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