chore: release (#2686)

<!-- This is an auto-generated description by cubic. -->
## Summary by cubic
Release 2.9.2: bump version and update the changelog. Adds test coverage
(socket, chat context, cache, translations, OAuth providers) and fixes
the Copilot regression introduced in 2.8.5.

<sup>Written for commit a4e3705.
Summary will update automatically on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

---------

Co-authored-by: Josh Hayes <35790761+hayescode@users.noreply.github.com>
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

Author: 3 people

CHANGELOG.md

@@ -4,6 +4,14 @@ All notable changes to Chainlit will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [2.9.2] - 2025-11-22
+
+### Added
+- Add tests for socket, chat context, cache, translations & oauth providers
+
+### Fixed
+- Fix copilot breaking change introduced in 2.8.5
+
 ## [2.9.1] - 2025-11-20
 
 ### Added

backend/chainlit/version.py

@@ -1 +1 @@
-__version__ = "2.9.1"
+__version__ = "2.9.2"