[instrumentation] fix: let wrapped exceptions bubble up (#19566)

* fix: let wrapped exceptions bubble up

* bump version

Author: masci

llama-index-instrumentation/pyproject.toml

@@ -7,7 +7,7 @@ dev = ["pytest>=8.4.0", "pytest-asyncio>=1.0.0", "pytest-cov>=6.1.1"]
 
 [project]
 name = "llama-index-instrumentation"
-version = "0.3.0"
+version = "0.3.1"
 description = "Add your description here"
 readme = "README.md"
 authors = [{name = "Massimiliano Pippi", email = "mpippi@gmail.com"}]

llama-index-instrumentation/src/llama_index_instrumentation/dispatcher.py

@@ -287,14 +287,7 @@ def handle_future_result(
                 context: Context,
             ) -> None:
                 try:
-                    exception = future.exception()
-                    if exception is not None:
-                        if exception.__class__.__name__ == "WorkflowCancelledByUser":
-                            result = None
-                        else:
-                            raise exception
-                    else:
-                        result = future.result()
+                    result = None if future.exception() else future.result()
 
                     self.span_exit(
                         id_=span_id,