fixed #14675 - provide proper error ID for `simplecpp::Output::EXPLICIT_INCLUDE_NOT_FOUND` #19474

Job	Run time
build_make (ubuntu:24.04)	1m 48s
build_make (alpine:3.23)	2m 35s
build_cmake (ubuntu:24.04, true, true)	2m 45s
build_make (ubuntu:25.10)	1m 56s
build_cmake (alpine:3.23, false, false)	1m 7s
build_cmake (ubuntu:25.10, true, true)	1m 4s
	11m 15s

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