changelog: Update fix for CVE-2023-47108

[sharathsivakumar]

Update 3.5 changelog for fixes backported to 3.5 in PR

[k8s-ci-robot]

Hi @sharathsivakumar. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[sharathsivakumar]

@ahrtr @jmhbnz @fuweid Here is the update to changelog for 3.5 . I can see that 3.5.10 is already released. So I am assuming this would be part of the next release. Hence created a section for 3.5.11. Please let me know if this is fine.

[ahrtr]

lgtm

Thanks.

[ahrtr]

Link to #16926