fix keyerror on missing rq queue

[amyasnikov]

Fixes #134

[ArmansPing]

Hi, I've upgraded validity to version 3.0.5. The bug in #134 has been fixed indeed.
But there is another error occured when I run a compliance tests

Unable to run script: no running RQ worker found for the queue "validity_tests"

Expecting your reply，thanks a lot!

[amyasnikov]

Hey @ArmansPing, the error says that:

1. You've configured custom queue "validity_tests" to serve your "run tests" requests.
2. You've NOT configured your RQ worker to serve that queue.

To make it work, you have to start RQ worker process serving the queue you've configured

./manage.py rqworker validity_tests

Here is the NetBox docs article regarding this topic:
https://netboxlabs.com/docs/netbox/en/stable/plugins/development/background-tasks/

If you have any further questions, please create a discussion

[ArmansPing]

This helps very much ,thanks a lot!