chore(orchestrator-infra): address review feedback

- Remove unused roles from flight-path-auto-tests base:
  - deploy-cost-metrics-operator
  - deploy-optimizer-app
  - deploy-orchestrator (old)
  - deploy-resource-optimization-plugin
  - deploy-resource-optimization-workflow
  - odf-node-recovery
  - post-mortem

- Remove unnecessary workflow repo cloning in 04-deploy-workflows.sh
  (workflows are created inline, no repo cloning needed)

- Fix PostgreSQL Job initialization:
  - Added app: init-orchestrator-db label to Job
  - Updated wait command to use correct label

Addresses feedback from @chadcrum

Author: gustavolira