Chore: Update diagram and docs

README.rst

coscine_watchdog/coscine_client.py

diagram/diagram.png

diagram/diagram.py

diagram/franka_emika_robot_world_wide_lab_demonstrator.png

diagram/images/Python-logo-notext.svg

diagram/images/python

diagram/images/python.jpeg

diagram/images/ros+python.png

diagram/images/ros.png

franka_lock_unlock/requirements.txt

franka_lock_unlock/setup.py