Add 100%-coverage unit tests for the three custom salt beacons
(postgres_pillar_beacon, rules_beacon, zeek) and add salt/_beacons to
the python-test workflow's paths trigger and matrix.
To pass the workflow's flake8 lint over the whole directory:
- zeek.py: reindent to 4 spaces, drop trailing blank line, noqa the
Salt-injected __salt__ references (F821); no logic change.
- postgres_pillar_beacon.py: noqa C901 on beacon() (complexity 13 > 12).
Rename the two custom push-detection beacons for clarity:
- pillar_db -> postgres_pillar_beacon
- rules_db -> rules_beacon
Salt resolves a beacon by its config-key name to a _beacons/ module of the
same filename and tags its events salt/beacon/<minion>/<name>/<tag>, so each
rename touches the module file, the beacon config key in
beacons_pushstate.conf.jinja, and the reactor tag patterns in
reactor_pushstate.conf together. Watermark filenames and log prefixes are
updated to match; reactor run() logic is unchanged.
Josh Patterson