rollback version bump (deleted self hosted version)

Former-commit-id: a2078e9dd23adaf45acf2006da3a4d1c42cf32b1

manifest.json

@@ -8,7 +8,7 @@
 		"64": "extension/ui/resources/icon_64.png",
 		"128": "extension/ui/resources/icon_128.png"
 	},
-	"version": "1.13.29",
+	"version": "1.13.28",
 	"description": "__MSG_extensionDescription__",
 	"content_scripts": [
 		{