worker: Check if Sentry is initialized before calling add_breadcrumb.

Otherwise we get spammed with “Dropped breadcrumb because no client
bound” log messages.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

zerver/worker/base.py

@@ -173,11 +173,15 @@ class QueueProcessingWorker(ABC):
             name=f"consume {self.queue_name}",
             custom_sampling_context={"queue": self.queue_name},
         ):
+            if sentry_sdk.is_initialized():
                 sentry_sdk.add_breadcrumb(
                     type="debug",
                     category="queue_processor",
                     message=f"Consuming {self.queue_name}",
-                data={"events": events, "local_queue_size": self.get_remaining_local_queue_size()},
+                    data={
+                        "events": events,
+                        "local_queue_size": self.get_remaining_local_queue_size(),
+                    },
                 )
             try:
                 if self.idle: