feat: support latest lg agui (CopilotKit#2262)

Author: ranst91

CopilotKit/.changeset/spicy-ghosts-brake.md

@@ -0,0 +1,6 @@
+---
+"@copilotkit/runtime": patch
+---
+
+- feat: use latest agui langgraph package
+- chore: release python sdk 0.1.58

CopilotKit/packages/runtime/package.json

@@ -50,7 +50,7 @@
     "@ag-ui/client": "0.0.35",
     "@ag-ui/core": "0.0.35",
     "@ag-ui/encoder": "0.0.35",
-    "@ag-ui/langgraph": "0.0.7",
+    "@ag-ui/langgraph": "0.0.8",
     "@ag-ui/proto": "0.0.35",
     "@anthropic-ai/sdk": "^0.57.0",
     "@copilotkit/shared": "workspace:*",