Add initialization. #8084

Job	Run time
Windows (check)	50m 57s
Linux (gcc, debian:stable, intel)	33m 38s
Windows (installer)	20m 48s
MacOS (macOS-13)	51m 2s
Linux (gcc, debian:stable, arm)	30m 31s
MacOS (macOS-14)	24m 4s
Linux (gcc, debian:testing, intel)	32m 45s
Linux (gcc, debian:testing, arm)	30m 42s
Linux (clang, debian:stable, intel)	35m 12s
Linux (clang, debian:stable, arm)	30m 8s
Linux (clang, debian:testing, intel)	33m 53s
Linux (clang, debian:testing, arm)	30m 29s
	6h 44m 9s

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