HYPERFLEET-1123 - feat: define hyperfleet-critical PriorityClass and apply to maestro pods

[kuudori]

Summary

• Define hyperfleet-critical PriorityClass (value: 1000000000) as a standalone manifest at manifests/priority-classes.yaml
• Add install-priority-classes Makefile target, hooked into install-all and install-all-rabbitmq before install-maestro
• Wire priorityClassName: hyperfleet-critical into all four maestro pod specs (server, agent, db, mqtt)
• Bump chart dependency versions to 0.1.1 for upstream priorityClassName hooks

Verification

Tested on local kind cluster:

• make install-priority-classes creates the PriorityClass with correct value
• Idempotent on re-apply
• kubectl get priorityclass hyperfleet-critical returns value=1000000000

Test plan

• Upstream feat(charts): expose podAnnotations and priorityClassName on agent/postgresql/mosquitto templates openshift-online/maestro#542 merges to main
• make install-priority-classes succeeds
• kubectl get priorityclass hyperfleet-critical shows value below system-cluster-critical (2B)
• kubectl get pods -n maestro -o custom-columns=NAME:.metadata.name,PRIORITY_CLASS:.spec.priorityClassName shows hyperfleet-critical on all four pods

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[openshift-ci]

PR needs rebase.

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