/usr/lib/x86_64-linux-gnu/libmeasurement_kit.so is in libmeasurement-kit-dev 0.7.1-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libmeasurement_kit-0.7.1.so.0.0.0
/usr/lib/x86_64-linux-gnu/libmeasurement_kit-0.7.1.so.0.0.0