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Why does tiup upgrade ignore the exporter agent?
I use tiup to upgrade a TiDB cluster from 5.1.4 to 5.1.5, node_exporter sholud 0.17 to 1.3, but no change.
Check the source code and find that exporter agent is ignored, what is the reason?
https://github.com/pingcap/tiup/blob/891c1e794c718380e1ca515a5955b19444c02d57/pkg/cluster/manager/upgrade.go#L92-L99