Add more asserts to newly added test

Author: vrslev

tests/integrations/litestar/test_litestar.py

@@ -488,3 +488,6 @@ async def error() -> None: ...
         pass
 
     assert len(events) == 1
+    event_exception = events[0]["exception"]["values"][0]
+    assert event_exception["type"] == "RuntimeError"
+    assert event_exception["value"] == "Too Hot"