Fix coroutinefunction deprecation warning Python 3.14

Author: mariusconjeaud

neomodel/async_/transaction.py

@@ -3,8 +3,8 @@
 """
 
 import warnings
-from asyncio import iscoroutinefunction
 from functools import wraps
+from inspect import iscoroutinefunction
 from typing import Any, Callable
 
 from neo4j.api import Bookmarks

neomodel/sync_/transaction.py

@@ -3,8 +3,8 @@
 """
 
 import warnings
-from asyncio import iscoroutinefunction
 from functools import wraps
+from inspect import iscoroutinefunction
 from typing import Any, Callable
 
 from neo4j.api import Bookmarks