v1.10.3

Mirror update

• Add new version for node_exporter (https://github.com/prometheus/node_exporter/releases/tag/v1.3.1) and blackbox_exporter (https://github.com/prometheus/blackbox_exporter/releases/tag/v0.21.1) in tiup repository. All the new tidb clusters or instances deployed by tiup cluster will use the new version by default.

Fixes

• Fix cannot clean related tidb topology after scale-in in tiup-cluster (#2011, @nexustar)
• Fix fail to push if server name has "-" in tiup-cluster (#2008, @nexustar)
• Fix unable to configure tiflash LearnerConfig in tiup-cluster (#1991, @srstack)

Improvements

• Improve the THP check rule in tiup-cluster (#2014, @nexustar)
• Add an example in -h for tiup mirror clone for multiple versions (#2009, @nexustar)