warn new docker users about kali rolling-release

[ForestJohnson]

warn new docker users about kali rolling-release

I added a warning message to all 3 of the docker related commands in the Makefile.

Description

Here is the message I added:

Please note that this uses the kali linux rolling release docker image
which does not support pinning to a specific version; it only has the :latest tag
So if this docker image build fails, that probably means OWTF needs
to update its docker build after a recent kali linux rolling release

Related Issue

Right now if you run any of those 3 docker-related make commands they will attempt to perform a docker image build from the provided Dockerfile which references kalilinux/kali-rolling:latest. After this project is left for a few months this build probably rot; kalilinux/kali-rolling:latest will be updated to something newer and the old docker build won't work any more. For example right now it doesn't work because the package named python3.9 doesn't exist in the kali linux package repo any more.

Motivation and Context

This change is required for new users who are not docker experts to be able to tell whats going on when they try to run the tool using docker and the image build part of it fails since OWTF has been left alone for a while and kalilinux/kali-rolling:latest changed. In fact, people may not even realize that it's running a docker build at all, since most projects provide a ready-to-run image as a part of their docker-compose.

Reviewers

I don't know anyone to tag here

How Has This Been Tested?

I haven't tested it at all, but it's just an echo statement in the makefile.

Types of changes

• Other (Usability)

Checklist:

• My code follows the code style (modified PEP8) of this project. ( To be honest I don't feel like reading about the code style here, It's just echo statements to warn the user )
• My change requires a change to the documentation.
• I have updated the documentation accordingly.