release mastra 0.0.4

Author: mme

typescript-sdk/integrations/mastra/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ag-ui/mastra",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "license": "Elastic-2.0",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",