Spelling fixes

Author: holtskinner

src/a2a/server/events/event_consumer.py

@@ -15,7 +15,8 @@
 from a2a.utils.errors import ServerError
 from a2a.utils.telemetry import SpanKind, trace_class
 
-# This is an alias to the execption for closed queue
+
+# This is an alias to the exception for closed queue
 QueueClosed = asyncio.QueueEmpty
 
 # When using python 3.13 or higher, the closed queue signal is QueueShutdown

src/a2a/server/events/event_queue.py

@@ -65,7 +65,7 @@ async def dequeue_event(self, no_wait: bool = False) -> Event:
         the queue has been closed. In python 3.13+ this is naturally provided
         by the QueueShutDown exception generated when the queue has closed and
         the user is awaiting the queue.get method. Python<=3.12 this needs to
-        manage this lifecylce itself. The current implementation can lead to
+        manage this lifecycle itself. The current implementation can lead to
         blocking if the dequeue_event is called before the EventQueue has been
         closed but when there are no events on the queue. Two ways to avoid this
         are to call this with no_wait = True which won't block, but is the