avoid progress-related hot spot in `ValueFlowPassRunner::run()` (#8369) #19368

Job	Run time
build_make (alpine:3.23)	5m 59s
build_cmake (ubuntu:25.10, true, true)	2m 50s
build_make (ubuntu:24.04)	2m 56s
build_cmake (ubuntu:24.04, true, true)	6m 3s
build_make (ubuntu:25.10)	4m 15s
build_cmake (alpine:3.23, false, false)	4m 22s
	26m 25s

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