some `Check::FileInfo`/`CTU::FileInfo` usage cleanups #19920

Job	Run time
build_make (ubuntu:24.04)	4m 11s
build_make (ubuntu:25.10)	5m 10s
build_cmake (alpine:3.23, false, false)	4m 21s
build_cmake (ubuntu:24.04, true, true)	2m 19s
build_make (alpine:3.23)	5m 5s
build_cmake (ubuntu:25.10, true, true)	2m 43s
	23m 49s

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