Automatic merge from submit-queue (batch tested with PRs 67691, 68147). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Update etcd client to 3.2.24 for latest release
**What this PR does / why we need it**:
Updates etcd client to 3.2.24 which is the latest in the 3.2 series. See https://github.com/etcd-io/etcd/blob/master/CHANGELOG-3.2.md for details.
**Special notes for your reviewer**:
This is only the client, in order to update the server components it requires a googler to push the 3.2.24 image.
**Release note**:
```
Update etcd client interface to 3.2.24
```
/assign @jpbetz @wojtek-t
/cc @liggitt @kubernetes/sig-cluster-lifecycle @kubernetes/sig-scalability-pr-reviews
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