/usr/include/KF5/ is in libkf5runner-dev 5.28.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/KRunner/
/usr/include/KF5/KRunner/KRunner/
/usr/include/KF5/KRunner/KRunner/AbstractRunner
/usr/include/KF5/KRunner/KRunner/QueryMatch
/usr/include/KF5/KRunner/KRunner/RunnerContext
/usr/include/KF5/KRunner/KRunner/RunnerManager
/usr/include/KF5/KRunner/KRunner/RunnerSyntax
/usr/include/KF5/KRunner/krunner/
/usr/include/KF5/KRunner/krunner/abstractrunner.h
/usr/include/KF5/KRunner/krunner/krunner_export.h
/usr/include/KF5/KRunner/krunner/querymatch.h
/usr/include/KF5/KRunner/krunner/runnercontext.h
/usr/include/KF5/KRunner/krunner/runnermanager.h
/usr/include/KF5/KRunner/krunner/runnersyntax.h
/usr/include/KF5/krunner_version.h