fix: Spelling error fixed (#7370)

(cherry picked from commit 22c264c)

aiohttp/payload.py

@@ -421,7 +421,7 @@ def __init__(self, value: _AsyncIterable, *args: Any, **kwargs: Any) -> None:
         if not isinstance(value, AsyncIterable):
             raise TypeError(
                 "value argument must support "
-                "collections.abc.AsyncIterablebe interface, "
+                "collections.abc.AsyncIterable interface, "
                 "got {!r}".format(type(value))
             )