/usr/share/cli-common/packages.d/libnpgsql2.2-cil.installcligac is in libnpgsql2.2-cil 2.2.7+dfsg3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1
/usr/lib/cli/Npgsql-2.2/Npgsql.dll