INFRA-5846: Automate the generation of the endpoints

[mindjiver]

Instead of manually updating the endpoints.md document we look up all the IPs from DNS and then generate all the tables. The final document is rendered from a jinj2 template.

The script is easiest run inside a virtual enviornment and by piping the output to the wanted markdown file.

virtualenv venv
source ./venv/bin/activate
pip install .
./venv/bin/generate_endpoints_markdown_document > endpoints.md