🐛 [etcd] Bump go package to v3.5.3

[dntosas]

What this PR does / why we need it:
Upgrading etcd golang libraries to the version that mitigates a critical
issue which leds to data corruption --> https://github.com/ahrtr/etcd-issues/tree/master/issues/13766

Signed-off-by: dntosas [email protected]

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

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[killianmuldoon]

Looks good overall - but could you remove the irrelevant changes to the clusterclass doc?

[killianmuldoon]

/ok-to-test

[killianmuldoon]

I think the CI issues should be cleaned up if you run make generate-modules

That pretty much just runs go mod tidy for each of the modules in the repo (hack and test each having their own go.mod)

[dntosas]

thnx for the tip @killianmuldoon :) i think we are good now

[killianmuldoon]

/lgtm

[CecileRobertMichon]

/lgtm
/approve

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This pull-request has been approved by: CecileRobertMichon

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[sbueringer]

Just to note: this PR is fine but I think we don't have to upgrade the libraries to resolve the issue as the issue is in the etcd server.

I couldn't find the place where I read it, the best reference that I could find was:

There are no breaking changes in API, meaning it’s safe to let v3.5 clients (e.g. the latest Kubernetes releases) talk to v3.4 servers.
https://groups.google.com/a/kubernetes.io/g/dev/c/B7gJs88XtQc

(I think it's worth mentioning because otherwise we would need more cherry-picking)