/usr/lib/libgrantlee_core.so.0 is in libgrantlee-core0 0.4.0-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgrantlee_core.so.0.4.0
/usr/lib/libgrantlee_core.so.0.4.0