PoC: amqp script to listen when a build is finished and trigger openQA tests

[foursixnine]

This is based on the work for #468

So it has many of the open points from that PR

The main difference is that this version only cares if a given pull request in --project for --branch is approved by --build-bot

few extra things are missing, like passing the list of binaries (packages) that are in the given incident/increment/pr (which has to be queried from the obs project corresponding to the PR.

I used as a test PR https://src.opensuse.org/products/PackageHub/pulls/160

python3 amqp-listen-gitea.py --verbose 3  --myself foursixnine-openqa \
 --simulate-build-finished-event tests/data/gitea-amqp/amqp-autogits_workflow_pr_bot-pull_request_review_approved-20251006-154156.json \
 --build-bot autogits_obs_staging_bot --project products/PackageHub --branch leap-16.0

As a side note the target url (for gitea status check) is now pointing to the build overview page instead of a single job

[Martchus]

GitHub only shows a few changes despite the many commits. Maybe this should be rebased?

[foursixnine]

GitHub only shows a few changes despite the many commits. Maybe this should be rebased?

GH is technically correct, as the changes for #468 aren't merged, I guess I could create a PR on @perlpunk's fork?

My changes mostly revolve around handle_build_finished