chore: fix parity with showcase

Author: ranst91

showcase/integrations/langgraph-typescript/package.json

@@ -14,7 +14,7 @@
     "@copilotkit/react-core": "1.56.2",
     "@copilotkit/react-ui": "1.56.2",
     "@copilotkit/runtime": "1.56.2",
-    "@copilotkit/sdk-js": "1.56.3",
+    "@copilotkit/sdk-js": "1.56.4",
     "@copilotkit/shared": "1.56.2",
     "@copilotkit/voice": "1.56.3",
     "@hashbrownai/core": "0.5.0-beta.4",

showcase/integrations/langgraph-typescript/src/agent/package.json

@@ -7,7 +7,7 @@
     "start": "node --import tsx liveness.mjs"
   },
   "dependencies": {
-    "@copilotkit/sdk-js": "1.56.3",
+    "@copilotkit/sdk-js": "1.56.4",
     "@langchain/core": "1.1.41",
     "@langchain/langgraph": "1.2.9",
     "@langchain/langgraph-api": "1.1.17",