/usr/include/KF5/KRunner/ is in libkf5runner-dev 5.18.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/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