Clear a step's success only when it was started and failed, and say updated when it passes again (novox/hq issue 467)

A bundle that could not be fetched refused nothing; clearing for it would rerun
every step on a node once the artifact store came back from an outage.

internal/apply/process.go

@@ -172,10 +172,12 @@ func applyProcess(ctx context.Context, r *declaration.Process, run Runner,
 			return out, err
 		}
 		if _, err := run(ctx, "systemctl", "start", r.Name+".service"); err != nil {
+			out.refused = true // started and did not complete: run again until it does (novox/hq issue 467)
 			return out, fmt.Errorf("the %s step did not complete (journalctl -u %s.service says why): %w", r.Name, r.Name, err)
 		}
+		// Updated whenever it has a record, whose Wrote a failed run cleared (novox/hq issue 467).
 		out.Action = "created"
-		if previous.Wrote != "" {
+		if previous.Wrote != "" || previous.ID != "" {
 			out.Action = "updated"
 		}
 		out.Detail = fmt.Sprintf("%d file(s), step completed", written)