upgrade client-go version to v0.21.2, due to a bug in the v0.17.3 ver…#919

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king-119 wants to merge 1 commit intosorintlab:masterfrom king-119:upgrade_client_go

Commits on Nov 22, 2023

upgrade client-go version to v0.21.2, due to a bug in the v0.17.3 version, when kube-api has a downtime, there will be a probability of connection timeout, and then can not select the master
bingbing ma
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