Cellular Network Infrastructure

Our usermanuals have a lot of links inside them, e.g. for jumping from TOC to a page. This is very useful. Currently this is broken in some manuals, where the size was reduced with ghostscript. (If running the manuals through ghostscript does not result in smaller file size, the original file is used instead and then the links aren't broken.)

Ghostscript is able to preserve the links in the pdf when reducing the size, but not in the older version that is being used in the debian 10 docker containers that we currently use to build the source and manuals before publishing them. Some projects require the source to be built in order to build the manuals, so the vty reference can be dynamically generated, for this reason we can't simply run the part that builds, shrinks and publishes manuals in a separate docker container.

I'll adjust the master-* jobs to run on a debian 11 docker container to fix this.