/usr/lib/apr-util-1/apr_dbd_pgsql.so is in libaprutil1-dbd-pgsql 1.3.12+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/apr-util-1/apr_dbd_pgsql-1.so
/usr/lib/apr-util-1/apr_dbd_pgsql-1.so