fix: add missing blank lines

Author: rhcarvalho

tests/test_tracing.py

@@ -156,9 +156,11 @@ def test_nested_span_sampling_override():
         with Hub.current.start_span(transaction="inner", sampled=False) as span:
             assert span.sampled is False
 
+
 def test_transactions_do_not_go_through_before_send(sentry_init, capture_events):
     def before_send(event, hint):
         raise RuntimeError("should not be called")
+
     sentry_init(traces_sample_rate=1.0, before_send=before_send)
     events = capture_events()