/usr/lib/camitk-3.3/actions/ is in libcamitk3-dev 3.3.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/camitk-3.3/actions/libapplication.so
/usr/lib/camitk-3.3/actions/libarbitraryslice.so
/usr/lib/camitk-3.3/actions/libbasicmesh.so
/usr/lib/camitk-3.3/actions/libbasictopology.so
/usr/lib/camitk-3.3/actions/libcropvolume.so
/usr/lib/camitk-3.3/actions/libimagelut.so
/usr/lib/camitk-3.3/actions/libimageresampling.so
/usr/lib/camitk-3.3/actions/libitkfilters.so
/usr/lib/camitk-3.3/actions/libitksegmentation.so
/usr/lib/camitk-3.3/actions/libmeshprocessing.so
/usr/lib/camitk-3.3/actions/libmml.so
/usr/lib/camitk-3.3/actions/libmultipicking.so
/usr/lib/camitk-3.3/actions/libpixelcolorchanger.so
/usr/lib/camitk-3.3/actions/libreconstruction.so
/usr/lib/camitk-3.3/actions/libshowin3d.so
/usr/lib/camitk-3.3/actions/libvolumerendering.so