chore(release): updated release notes and package versions [ci skip]

 - @contentful/live-preview@3.0.0-alpha.29

Author: contentful-automation[bot]

packages/live-preview-sdk/CHANGELOG.md

@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [3.0.0-alpha.29](https://github.com/contentful/live-preview/compare/@contentful/live-preview@3.0.0-alpha.28...@contentful/live-preview@3.0.0-alpha.29) (2024-03-14)
+
+
+### Bug Fixes
+
+* window messaging for cypress ([40162ed](https://github.com/contentful/live-preview/commit/40162edbc1ea29a12f8f5b7948a1b2a9ab5394bf))
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+
+
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 # [3.0.0-alpha.28](https://github.com/contentful/live-preview/compare/@contentful/live-preview@3.0.0-alpha.27...@contentful/live-preview@3.0.0-alpha.28) (2024-03-14)
 
 **Note:** Version bump only for package @contentful/live-preview

packages/live-preview-sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@contentful/live-preview",
-  "version": "3.0.0-alpha.28",
+  "version": "3.0.0-alpha.29",
   "author": "Contentful GmbH",
   "license": "MIT",
   "description": "Preview SDK for both the field tagging connection + live content updates",