Docker-compose fixes

[glennmatthews]

• Since we're overriding the default in the base Docker image to run on a different port than the default, nautobot-server runserver needs the --insecure option to serve static files successfully
• RQ worker shouldn't be needed these days.

[jvanderaa]

@glennmatthews I think we need the celery worker swap in here.

[glennmatthews]

Possibly so - are we doing anything with pynautobot at present that needs the worker though?

[jvanderaa]

Nothing, just meant as a test unit.