moves the installation path from /root/.local to a
virtualenv. this way we still get the lightweight
multistage build without excluding non-root users.

A changelog entry has been added under the Integration
subheader

we are now using the inbuilt venv activate script, as well
as explicitly mentioning the binary location in the entrypoint
cmd.

Just being a little more explicit at what was actually done

Formatting which I was worried about.