Plan to release v3.5.23

[ivanvc]

What would you like to be added?

The etcd patch release criteria has been met for our release-3.5 stable branch, so we should release v3.5.23.

Work in progress CHANGELOG is: https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md#v3523-tba

The list of commits included since the previous release is: v3.5.22...release-3.5:

• [release-3.5] Bump Go to 1.23.12 #20462
• [release-3.5] Bump bbolt to v1.3.12 #20514
• [release-3.5] back port tests: skip TestCorruptedBackupFileCheck test on big endian platforms #20535

Outstanding tasks before releasing this version:

• panic: assertion failed: Page expected to be: 5 #20271

Release team

GitHub handle	Role
@ivanvc	TBD

Why is this needed?

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