fix(ats): don't send requests to ats nodes without install_complete_ts (

#807)

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## Changes

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svc/pkg/mm/worker/src/workers/lobby_create/mod.rs

@@ -877,6 +877,7 @@ async fn resolve_image_artifact_url(
 						datacenter_id = $1 AND
 						pool_type = $2 AND
 						vlan_ip IS NOT NULL AND
+						install_complete_ts IS NOT NULL AND
 						drain_ts IS NULL AND
 						cloud_destroy_ts IS NULL	
 				)