Release v1.56.3

🛠️Fixes

• Docs Build Prerender Crash — Fixed an unclosed dotenv code block in the Pub/Sub advanced guide (/docs/advanced-guide/using-publisher-subscriber) that causediNext.jsftort throw TypeError: Cannot read properties of undefined (reading 'toLowerCase') during prerendering, breaking the Dockerize step of the v1.56.2 release workflow.