remove deprecated asyncio.iscoroutinefunction and use `inspect.isco…

…routinefunction`

mmpy_bot/function.py

@@ -43,7 +43,7 @@ def __init__(
             )
 
         self.function = function
-        self.is_coroutine = asyncio.iscoroutinefunction(function)
+        self.is_coroutine = inspect.iscoroutinefunction(function)
         self.is_click_function: bool = False
         self.matcher = matcher
         self.metadata = metadata
@@ -100,7 +100,7 @@ def __init__(
 
         if self.is_click_function:
             _function = self.function.callback
-            if asyncio.iscoroutinefunction(_function):
+            if inspect.iscoroutinefunction(_function):
                 raise ValueError(
                     "Combining click functions and coroutines is currently not supported!"
                     " Consider using a regular function, which will be threaded by default."