Align with restructured parameters
Update CI deployment values to match the restructured sylva-units parameters:
- Move workload_clusters.teams_repo --> workload_teams_repo
- Move workload_clusters.sylva_units_release_preset_default --> workload_team_defs.sylva_units_release_preset_default
- Move workload_clusters.sylva_units_release_presets --> workload_team_defs.sylva_units_release_presets
- Remove the workload_clusters key entirely
Related MR: sylva-projects/sylva-elements/helm-charts/workload-team-defs!138 (merged)