feat(ironic): clear out any pending BIOS jobs when enrolling a node

When we start enrolling a node we need to clear out any pending BIOS
jobs so that we can perform our own operations without concern for them
failing since you can only have one queued up at a time.

Author: cardoe

components/ironic/values.yaml

@@ -77,6 +77,9 @@ conf:
     conductor:
       automated_clean: true
       clean_step_priority_override: deploy.erase_devices_express:95
+      # this clears out any pending BIOS jobs or updates when verifying the node
+      # so that we can queue our own without failure
+      verify_step_priority_override: management.clear_job_queue:90
       # (nicholas.kuechler) tuning for idrac hardware type
       # https://docs.openstack.org/ironic/latest/admin/drivers/idrac.html#nodes-go-into-maintenance-mode
       sync_power_state_interval: 70