Debian files from local apt cache are not properly installed

[murphm8]

When using a local (on-disk) apt repository of .deb files the files that need to be installed are not copied into the apt cache that the bundle command uses.

colcon-bundle/colcon_bundle/installer/apt.py

Line 271 in fb87b48

pkgs_abs_path = glob.glob(os.path.join(deb_cache, '*.deb'))

Per this code we just glob out the apt cache and install all those files. The files from the local apt repo are then not installed. We need to identify how to get the path to the local Debian file from apt, and install it.