/usr/lib/camitk-4.0/actions/ is in libcamitk-dev 4.0.4-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/camitk-4.0/actions/libapplication.so
/usr/lib/camitk-4.0/actions/libbasicmesh.so
/usr/lib/camitk-4.0/actions/libbasictopology.so
/usr/lib/camitk-4.0/actions/libcropvolume.so
/usr/lib/camitk-4.0/actions/libeditframes.so
/usr/lib/camitk-4.0/actions/libimageacquisition.so
/usr/lib/camitk-4.0/actions/libimagelut.so
/usr/lib/camitk-4.0/actions/libimageresampling.so
/usr/lib/camitk-4.0/actions/libitkfilters.so
/usr/lib/camitk-4.0/actions/libitksegmentation.so
/usr/lib/camitk-4.0/actions/libmeshprocessing.so
/usr/lib/camitk-4.0/actions/libmml.so
/usr/lib/camitk-4.0/actions/libmultipicking.so
/usr/lib/camitk-4.0/actions/libpixelcolorchanger.so
/usr/lib/camitk-4.0/actions/libpml.so
/usr/lib/camitk-4.0/actions/libreconstruction.so
/usr/lib/camitk-4.0/actions/libreorientimage.so
/usr/lib/camitk-4.0/actions/libshowin3d.so
/usr/lib/camitk-4.0/actions/libvolumerendering.so