correct parameter name for sock_recv of BaseEventLoop subclasses (#13212)

stdlib/@tests/stubtest_allowlists/common.txt

@@ -288,8 +288,6 @@ ast.Str.__new__  # runtime is *args, **kwargs due to a wrapper, but we have more
 ast.NodeVisitor.visit_\w+  # Methods are discovered dynamically, see #3796
 _?asyncio.Future.__init__  # Usually initialized from c object
 asyncio.futures.Future.__init__  # Usually initialized from c object
-asyncio.proactor_events.BaseProactorEventLoop.sock_recv  # nbytes parameter has different name 'n' in implementation
-asyncio.selector_events.BaseSelectorEventLoop.sock_recv  # nbytes parameter has different name 'n' in implementation
 
 # Condition functions are exported in __init__
 asyncio.Condition.acquire

stdlib/asyncio/proactor_events.pyi

@@ -62,3 +62,4 @@ class _ProactorSocketTransport(_ProactorReadPipeTransport, _ProactorBaseWritePip
 
 class BaseProactorEventLoop(base_events.BaseEventLoop):
     def __init__(self, proactor: Any) -> None: ...
+    async def sock_recv(self, sock: socket, n: int) -> bytes: ...

stdlib/asyncio/selector_events.pyi

@@ -1,4 +1,5 @@
 import selectors
+from socket import socket
 
 from . import base_events
 
@@ -6,3 +7,4 @@ __all__ = ("BaseSelectorEventLoop",)
 
 class BaseSelectorEventLoop(base_events.BaseEventLoop):
     def __init__(self, selector: selectors.BaseSelector | None = None) -> None: ...
+    async def sock_recv(self, sock: socket, n: int) -> bytes: ...