fix: clean up dockerfile

[sabotagebeats]

What I did

Clean up the dockerfile, and build from builder with wheels

fixes: issue where the silverback docker image does not have the newest version of silverback

How I did it

cleaned up the dockerfile using the techniques used in ape core

How to verify it

build the dockerfile

Checklist

• Passes all linting checks (pre-commit and CI jobs)
• New test cases have been added and are passing
• Documentation has been updated
• PR title follows Conventional Commit standard (will be automatically included in the changelog)

[fubuloubu]

Have to check that this builds first

[sabotagebeats]

Have to check that this builds first

It builds for me but I would love if someone else could try

docker build -t test .

[fubuloubu]

Builds! And has the right version built:

$ docker run -it --entrypoint /bin/bash sbk-test
harambe@10cda5e23f38:~/project$ pip freeze | grep silverback
silverback==0.1.0b8.dev3+g8ad79f4