Plan to release etcd v3.5.18

[ivanvc]

What would you like to be added?

The etcd patch release criteria has been met for our release-3.5 stable release branch so we should release v3.5.18.

The list of commits included since the previous release is: v3.5.17...release-3.5:

• [3.5] support custom content check offline in v2store #19113
• [3.5] Bump golang-jwt/jwt to 4.5.1 to address GO-2024-3250 #18899
• [3.5] add tls min/max version to grpc proxy #18829
• [3.5] fix runtime error: comparing uncomparable type #18937
• [3.5] Print warning message for deprecated v2 flags if set #18999
• [3.5] Print warning message for deprecated v2 flags if set #18999

Work in progress CHANGELOG is: https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md#v3518-tbc

List of pull requests we still need to backport from main to release-3.5 before the patch release is issued:

• TBD

Release team

GitHub handle	Role
@ivanvc	TBD
@ghouscht	Release Shadow

Why is this needed?

Regular patch releases are vital to ensure our users have bug-free and secure software.

[ivanvc]

I'd like to be a release advisor/shadow, as I'd like to see someone else running the release script after the first improvements from #18604. However, I can also be the lead if there are no volunteers.

[ghouscht]

I haven't had much time in the last few weeks to help with etcd development but I think I could once again be a shadow for the release. I think I'm not yet familiar enough with the process to be a lead.