/usr/lib/${DEB_HOST_MULTIARCH}/libgpgme-pthread.so is in libgpgme-dev 1.10.0-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/${DEB_HOST_MULTIARCH}/libgpgme.so
/usr/lib/${DEB_HOST_MULTIARCH}/libgpgme.so