/usr/share/cli-common/packages.d/libgmime2.6-cil.installcligac is in libgmime2.6-cil 2.6.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1
/usr/lib/cli/gmime-sharp-2.6/gmime-sharp.dll