chore: drop support for brms

[infinitewarp]

As discussed in Slack (link), we can drop JBoss BRMS support immediately.

This change should merge and release around the same time as https://github.com/quipucords/quipucords/pull/2644 and https://github.com/quipucords/qpc/pull/329 and https://github.com/quipucords/quipucords-ui/pull/366

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.79%. Comparing base (1ef27ac) to head (c49ce6f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #508 +/- ## ======================================= Coverage 76.79% 76.79% ======================================= Files 7 7 Lines 698 698 ======================================= Hits 536 536 Misses 162 162 ```

:umbrella: View full report in Codecov by Sentry.
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[bruno-fs]

@quipucords/quality-engineers: Brad tested the changes introduced here in the following standalone job: https://stage-jenkins-csb-smqe.apps.ocp-c1.prod.psi.redhat.com/job/discovery-standalone/102/

[mirekdlugosz]

This PR leaves around few more references:

• camayoc/ui/models/pages/sources.py
• camayoc/types/ui.py
• camayoc/ui/data_factories.py
• camayoc/tests/qpc/ui/test_endtoend.py

In all but first the reference is to decision_manager, which is why you might have missed them.

[infinitewarp]

I amended and force-pushed the commit to include the bits that Mirek mentioned. I'm not sure how I missed those in my first pass, but thank you for calling them out! I'll kick off another standalone CI run shortly to verify.

edit: standalone job: https://stage-jenkins-csb-smqe.apps.ocp-c1.prod.psi.redhat.com/job/discovery-standalone/103/

edit 2:

Finished: SUCCESS