Improve release process

[dliappis]

This is a small but annoying issue.

The current release workflow and script (./release.sh) rely on certain pip3 packages and is flaky while using a virtualenv.

In ticket we'll explore if there's a simpler and more reliable way to perform this.

We will start by experimenting with adding a Makefile target that allows us to ./release.sh inside a Docker environment with all prerequisites satisfied.

[danielmitterdorfer]

@dliappis In make install we setup all required dependencies that are needed to do a release so I think we've solved this by now?

[dliappis]

Makes sense yes.