Update changelog for v3.28.3

Author: github-actions[bot]

Diff for: 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]
+## 3.28.3 - 22 Jan 2025
 
 - Update default CodeQL bundle version to 2.20.2. [#2707](https://github.com/github/codeql-action/pull/2707)
 - Fix an issue downloading the CodeQL Bundle from a GitHub Enterprise Server instance which occurred when the CodeQL Bundle had been synced to the instance using the [CodeQL Action sync tool](https://github.com/github/codeql-action-sync-tool) and the Actions runner did not have Zstandard installed. [#2710](https://github.com/github/codeql-action/pull/2710)