chore: bump adk middleware to 0.3.2 (#559)

Author: contextablemark

integrations/adk-middleware/python/examples/uv.lock

@@ -1,6 +1,6 @@
 [project]
 name = "ag_ui_adk"
-version = "0.3.1"
+version = "0.3.2"
 readme = "README.md"
 authors = [
     { name = "Mark Fogle", email = "[email protected]" }