fix order for 188 test

Author: ihrpr

tests/issues/test_188_concurrency.py

@@ -12,17 +12,21 @@
 async def test_messages_are_executed_concurrently():
     server = FastMCP("test")
     event = anyio.Event()
+    tool_started = anyio.Event()
     call_order = []
 
     @server.tool("sleep")
     async def sleep_tool():
         call_order.append("waiting_for_event")
+        tool_started.set()
         await event.wait()
         call_order.append("tool_end")
         return "done"
 
     @server.resource(_resource_name)
     async def slow_resource():
+        # Wait for tool to start before setting the event
+        await tool_started.wait()
         event.set()
         call_order.append("resource_end")
         return "slow"