Update changelog for v3.22.11

Author: github-actions[bot]

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 See the [releases page](https://github.com/github/codeql-action/releases) for the relevant changes to the CodeQL CLI and language packs.
 
-## [UNRELEASED]
+## 3.22.11 - 13 Dec 2023
 
 - [v3+ only] The CodeQL Action now runs on Node.js v20. [#2006](https://github.com/github/codeql-action/pull/2006)