Add missing packages to run mr.roboto

[gforcada]

Now to run mr.roboto locally one only has to:

python3.11 -m venv .
. bin/activate
pip install pip-tools
pip-sync requirements-app.txt
pip install -e src/mr.roboto
cp development.ini.sample development.ini
./bin/pserve development.ini

We are one step closer to remove buildout from the equation and deploy and update dependencies much more easily and reliable 🍀

[gforcada]

Oh, right, great idea, though, running mr.roboto locally is not much useful actually 😓