/usr/share/cli-common/packages.d/libglib3.0-cil.installcligac is in libglib3.0-cil 2.99.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/usr/lib/cli/glib-sharp-3.0/glib-sharp.dll