Changelog update - v0.9.2-alpha1 (#340)

Current pull request contains patched `CHANGELOG.md` file for the
`v0.9.2-alpha1` version.

Co-authored-by: GitHub Action <action@github.com>

Author: github-actions[bot]

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 0.9.2-alpha1 - 2026-07-22
+
 ### Changed
 
 - migrated plugin packaging to the new marketplace compatible structure