While cmake does need all of biboumi's dependencies to generate
documentation, there is an existing Makefile which does not. So we can
save some time by not downloading as many dependencies
To fully automate deployment of documentation pages to codeberg pages a
woodpecker CI file containing the build instruction is made.
This needs to install all of biboumi's dependencies as to work with
cmake, then generate the makefiles, and finally the actual documentation
as HTML.
Once that's done, push everything to a `pages` branch.