Synapse 1.92.2 (2023-09-15)

This is a Docker-only update to mitigate CVE-2023-4863, a critical vulnerability in libwebp. Server admins not using Docker should ensure that their libwebp is up to date (if installed). We encourage admins to upgrade as soon as possible.

Updates to the Docker image

• Update docker image to use Debian bookworm as the base. (#16324)