fix(ai): Do not consume anthropic streaming stop (#4232)

The old functionality wouldn't re-emit the `stop` message for streaming
Anthropic calls.

Author: colin-sentry

sentry_sdk/integrations/anthropic.py

@@ -184,8 +184,7 @@ def new_iterator():
                     input_tokens, output_tokens, content_blocks = _collect_ai_data(
                         event, input_tokens, output_tokens, content_blocks
                     )
-                    if event.type != "message_stop":
-                        yield event
+                    yield event
 
                 _add_ai_data_to_span(
                     span, integration, input_tokens, output_tokens, content_blocks
@@ -202,8 +201,7 @@ async def new_iterator_async():
                     input_tokens, output_tokens, content_blocks = _collect_ai_data(
                         event, input_tokens, output_tokens, content_blocks
                     )
-                    if event.type != "message_stop":
-                        yield event
+                    yield event
 
                 _add_ai_data_to_span(
                     span, integration, input_tokens, output_tokens, content_blocks