fixed #14675 - provide proper error ID for `simplecpp::Output::EXPLICIT_INCLUDE_NOT_FOUND` #19475

Job	Run time
build_cmake (ubuntu:25.10, true, true)	3m 1s
build_cmake (alpine:3.23, false, false)	4m 31s
build_make (ubuntu:24.04)	2m 54s
build_make (ubuntu:25.10)	3m 33s
build_make (alpine:3.23)	5m 14s
build_cmake (ubuntu:24.04, true, true)	2m 58s
	22m 11s

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