/usr/include/KF5/KArchive/ is in libkf5archive-dev 5.28.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/KArchive/K7Zip
/usr/include/KF5/KArchive/KAr
/usr/include/KF5/KArchive/KArchive
/usr/include/KF5/KArchive/KArchiveDirectory
/usr/include/KF5/KArchive/KArchiveEntry
/usr/include/KF5/KArchive/KArchiveFile
/usr/include/KF5/KArchive/KCompressionDevice
/usr/include/KF5/KArchive/KFilterBase
/usr/include/KF5/KArchive/KFilterDev
/usr/include/KF5/KArchive/KTar
/usr/include/KF5/KArchive/KZip
/usr/include/KF5/KArchive/KZipFileEntry
/usr/include/KF5/KArchive/k7zip.h
/usr/include/KF5/KArchive/kar.h
/usr/include/KF5/KArchive/karchive.h
/usr/include/KF5/KArchive/karchive_export.h
/usr/include/KF5/KArchive/karchivedirectory.h
/usr/include/KF5/KArchive/karchiveentry.h
/usr/include/KF5/KArchive/karchivefile.h
/usr/include/KF5/KArchive/kcompressiondevice.h
/usr/include/KF5/KArchive/kfilterbase.h
/usr/include/KF5/KArchive/kfilterdev.h
/usr/include/KF5/KArchive/ktar.h
/usr/include/KF5/KArchive/kzip.h
/usr/include/KF5/KArchive/kzipfileentry.h