v2.6.3 - Critical Security Update

This release contains a CRITICAL security fix for the Docker setup of Linkace. Please update as soon as possible!

• Updates PHP inside the Docker image to 8.5.12 because of the PHP RCE vulnerability published today. Details: https://www.php.net/archive/2026.php#2026-10-21-5
• Updates dependencies

Full Changelog: v2.6.2...v2.6.3