Add priorities to queue tasks

mev_inspect/queue/tasks.py

@@ -9,6 +9,12 @@ from .middleware import DbMiddleware, InspectorMiddleware
 logger = logging.getLogger(__name__)
 
 
+# create a separate actor for backfill export
+# set to same priority as backfill inspect
+LIVE_EXPORT_BLOCK_PRIORITY = 1
+BACKFILL_INSPECT_MANY_BLOCKS_PRIORITY = 0
+
+
 def inspect_many_blocks_task(
     after_block: int,
     before_block: int,